Sentence Correction

The Nobel Prize in chemistry was awarded to three scientists for their discovery
that plastic can be made electrically conductive-an advance that has led to
improvements in film, television screens, and windows.

(A) that plastic can be made electrically conductive-an advance that has led

(B) that plastic can be made electrically conductive-this advance leading

(C) that plastic can be made to be electrically conductive, and this advance led

(D) of plastic's ability to be made electrically conductive, with this advance leading

(E) of plastic being able to be made electrically conductive-an advance that has led

QA Later

IMO A here

GMAT Hacker wrote:The Nobel Prize in chemistry was awarded to three scientists for their discovery
that plastic can be made electrically conductive-an advance that has led to
improvements in film, television screens, and windows.

(A) that plastic can be made electrically conductive-an advance that has led

(B) that plastic can be made electrically conductive-this advance leading

(C) that plastic can be made to be electrically conductive, and this advance led

(D) of plastic's ability to be made electrically conductive, with this advance leading

(E) of plastic being able to be made electrically conductive-an advance that has led

QA Later

IMO all the options look nonsensical.Please quote the source of this Question.
"an advance" shall be "an achievement".IMO : A
Although I am not very sure about this answer choice.In Order to maintain parallelism the trailing part of the sentence shall use simple past,"an advancement that led".We need the help of some other enlightened soul

We can easily eliminate C,D and E. IMO B is wrong because it uses 'lending' at the end.

I will go with A.

I will go with A as well...

OA & Source plz..??

skprocks wrote:

GMAT Hacker wrote:The Nobel Prize in chemistry was awarded to three scientists for their discovery
that plastic can be made electrically conductive-an advance that has led to
improvements in film, television screens, and windows.

(A) that plastic can be made electrically conductive-an advance that has led

(B) that plastic can be made electrically conductive-this advance leading

(C) that plastic can be made to be electrically conductive, and this advance led

(D) of plastic's ability to be made electrically conductive, with this advance leading

(E) of plastic being able to be made electrically conductive-an advance that has led

QA Later

IMO all the options look nonsensical.Please quote the source of this Question.
"an advance" shall be "an achievement".IMO : A
Although I am not very sure about this answer choice.In Order to maintain parallelism the trailing part of the sentence shall use simple past,"an advancement that led".We need the help of some other enlightened soul

What GMAT ask us to do is choose the best option available. Here A is the best choice among 5 choices.

QA A

reply2spg wrote:We can easily eliminate C,D and E. IMO B is wrong because it uses 'lending' at the end.

why LEADING in B is wrong

be careful with gmatprep questions.

+1 to A

Confused between A and D.
IMO D because I would prefer 'discovery of' rather than 'discovery that'. but not sure about the present continous tense leading at the end.

Experts guidance please!

why B is wrong , please, help

gmatprep contains the very difficult questions and it is a good source. In short, we should study the gmatprep questions very carefully for all level of students.