OG VR 199 :Coffee prices rose sharply Monday

[NandishSS]

Coffee prices rose sharply Monday, posting their biggest one-day gain in almost three years, after a weekend cold snap in Brazil raised concern that there could be damage to the world's largest crop when at a time with supplies already tight.

A. that there could be damage to the world's largest crop when at a time with supplies
B. that the world's largest crop could be damaged at a time such as when supplies are
C. that the world's largest crop could be damaged at a time when supplies are
D. of the world's largest crop possibly being damaged at a time with supplies
E. of possibly damaging the world's largest crop at a time that supplies were

OA:C

POE:[spoiler]
A:there could be damage to-Wordy and is not necessary
B:Wrong usage of such as
C:Correct
D:The correct preposition to be used with time is when
E:The correct preposition to be used with time is when
[/spoiler]

Is my analysis right? Experts pls add your thoughts

[NandishSS]

Bumping the thread for the experts review.

[Ali Tariq]

Lets build it up from absolute basics.

A. that there could be damage to the world's largest crop when at a time with supplies

In this particular context when is supposed to modify time
whereas, in A when modifies crop.

You cannot modify crop with when,
however, you can modify time with when ( as is done in OA )



time with supplies
time is a noun.
with supplies already tight is a prepositional phrase.

Can you modify noun with prep phrase?
Yes.

In that case, prep phrase serves the purpose of adjective.

adjectives answer which?

which time?
the one with supplies already tight.

problematic grammar?
No!

Problematic meaning?
Yes. Non sensical meaning

[Ali Tariq]

B. that the world's largest crop could be damaged at a time such as when supplies are

In GMAT SC, such as is used to introduce example(s)

Not the case here, so incorrect.
You pointed it out correctly.

[Ali Tariq]

D. of the world's largest crop possibly being damaged at a time with supplies

same deal as in A.

[Ali Tariq]

E. of possibly damaging the world's largest crop at a time that supplies were

time that is incorrect.(it has appeared in number of instances in official material. Always incorrect.)
time when is crorrect.

P.S:
when is not a preposition .
when is a conjunction.

In your analysis, you have mentioned that when is a preposition.
Rules governing correct usage of preposition are pretty different from those governing the correct usage of conjunction.

[GMATGuruNY]

Coffee prices rose sharply Monday, posting their biggest one-day gain in almost three years, after a weekend cold snap in Brazil raised concern that there could be damage to the world's largest crop when at a time with supplies already tight.

A. that there could be damage to the world's largest crop when at a time with supplies
B. that the world's largest crop could be damaged at a time such as when supplies are
C. that the world's largest crop could be damaged at a time when supplies are
D. of the world's largest crop possibly being damaged at a time with supplies
E. of possibly damaging the world's largest crop at a time that supplies were

A CLAUSE includes both a subject and a verb.
when must serve to introduce a clause.
A and D: when at a time with supplies already tight
Here, when incorrectly serves to introduce the modifier in red.
Eliminate A.

B: at a time such as when
Here, the usage of such as is unwarranted.

One concern of management is the budget.
Here, the phrase in blue logically conveys that MANAGEMENT HAS A CONCERN.

D: concern of the world's largest crop
Here, the phrase in red seems to imply that the CROP has a concern.
This meaning is nonsensical.
Eliminate D.

E: concern of possibly damaging
Here, the phrase in red seems to imply that the act of DAMAGING has a concern.
This meaning is nonsensical.
Eliminate E.

The correct answer is C.

[noiceman]

Coffee prices rose sharply Monday, posting their biggest one-day gain in almost three years, after a weekend cold snap in Brazil raised concern that there could be damage to the world's largest crop when at a time with supplies already tight.

A. that there could be damage to the world's largest crop when at a time with supplies
B. that the world's largest crop could be damaged at a time such as when supplies are
C. that the world's largest crop could be damaged at a time when supplies are
D. of the world's largest crop possibly being damaged at a time with supplies
E. of possibly damaging the world's largest crop at a time that supplies were

A CLAUSE includes both a subject and a verb.
when must serve to introduce a clause.
A and D: when at a time with supplies already tight
Here, when incorrectly serves to introduce the modifier in red.
Eliminate A.

B: at a time such as when
Here, the usage of such as is unwarranted.

One concern of management is the budget.
Here, the phrase in blue logically conveys that MANAGEMENT HAS A CONCERN.

D: concern of the world's largest crop
Here, the phrase in red seems to imply that the CROP has a concern.
This meaning is nonsensical.
Eliminate D.

E: concern of possibly damaging
Here, the phrase in red seems to imply that the act of DAMAGING has a concern.
This meaning is nonsensical.
Eliminate E.

The correct answer is C.

Hi expert,
Please help
"...raised concern that xxx could be damaged at a time when supplies are already tight"
I think the sentence is in past tense, so why "are" is correct and "were" is incorrect?
Thank you in advance.

[GMATGuruNY]

The store held a sale Saturday.
The modifier in blue implies that Saturday was LESS THAN A WEEK AGO.

Hi expert,
Please help
"...raised concern that xxx could be damaged at a time when supplies are already tight"
I think the sentence is in past tense, so why "are" is correct and "were" is incorrect?
Thank you in advance.

OA: Coffee prices rose sharply Monday after a weekend cold snap in Brazil raised concern that the world's largest crop could be damaged at a time when supplies are already tight.
Here, the modifier in blue implies that MONDAY was less than a week ago.
Thus, the portion in red refers to the PRESENT -- just a few days after this past Monday.
The usage of are (present tense) conveys that RIGHT NOW -- just a few days after prices rose this past Monday -- supplies ARE tight.

[noiceman]

The store held a sale Saturday.
The modifier in blue implies that Saturday was LESS THAN A WEEK AGO.

Hi expert,
Please help
"...raised concern that xxx could be damaged at a time when supplies are already tight"
I think the sentence is in past tense, so why "are" is correct and "were" is incorrect?
Thank you in advance.

OA: Coffee prices rose sharply Monday after a weekend cold snap in Brazil raised concern that the world's largest crop could be damaged at a time when supplies are already tight.
Here, the modifier in blue implies that MONDAY was less than a week ago.
Thus, the portion in red refers to the PRESENT -- just a few days after this past Monday.
The usage of are (present tense) conveys that RIGHT NOW -- just a few days after prices rose this past Monday -- supplies ARE tight.

Hi expert,
I'm an ESL. Sometimes the subtle meaning of English expression confuses me a lot.
Thank you for your explanation. It's very helpful.