To handle such questions, best way in GMAT is plug in values.
Given x and y are positive, try pluging in values of x and y > 0

Also, pls use positive decimals also, as we have no idea if x and y are just integers.

Some points worth noticing:

1. In Time: Gives the meaning of "Early enough."
2. On Time: Gives the meaning of "Just at right time."
3. "The Number" is singular, while "a number" is considered plural.
4. Subject form of pronoun comes after "than".

C, D and E: Pls ignore.
The tone of the sentence needs the contrast. In the sense that something bad had happened but nevertheless, he is working hard. You getting my point.

Thus, my pic is B. But lets see what others have to say about A.
What is OA?

"flawed as discussed as follows."....as discussed below would be better, if at all, you sidh to write it this way. But, I would suggest, give a starting line as to why do u think there is a flaw in first paragraph itself. "However there is no substantial information to state that the ...

Use of Comma and Semicolon: If the two parts of the same sentence are independent and can stand alone, please donot separte them with comma. Instead use Semicolon. For example: It's raining out there, I am not going to the office. This is a wrong construction for reasons mentioned above. Correct wou...

to an extent in considering......isnt THAT missing?

Organzation of Ideas is good. Please check for grammer.
Else, the essay is superb.

Hey guys, I came across following table in one of the books I purcahsed Subject Object Possessive I Me My You You Your He Him His She Her Her It it its We Us our They them their Who Whom Whose Note: Possessive pronoun can replace only possessive nouns. Same stands true for Subject and Object Pronouns.