Whereas a typical Master's thesis is approximately one

[BTGmoderatorDC]

Whereas a typical Master's thesis is approximately one hundred pages long, Ph.D theses is usually over two hundred pages.

A) Whereas a typical Master's thesis is approximately one hundred pages long, Ph.D theses is usually
B) A typical Master's thesis is approximately one hundred pages long, while a Ph.D thesis is generally
C) A typical Master's thesis is approximately one hundred pages long, so a Ph.D thesis is usually
D) While typical Master's theses is approximately one hundred pages long, Ph.D theses is generally
E) Whereas a typical Master's thesis is approximately one hundred pages long, a Ph.D thesis is

OA B

Source: Economist Gmat

[deloitte247]

,....

[deloitte247]

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[deloitte247]

This is purely an academic affair. (chuckles) let's drive down to the options available to check which is the most correct.

Option A:- Incorrect
We have an ugly situation on our hands. "Master's thesis" is in singular form. This is a case of inconsistent use of tenses.

Option B:- correct
There's a consistent use of tense here, if we see clearly the Thesis appears on both side in the singular form.

Option C:- Incorrect
The statement does not flow well. The first line of the sentence doesn't flow with the second. It appears like it's saying "consequently" .

Option D:- Incorrect
Here, a funny blunder has been committed. You can't use a plural "theses" and follow it up with a singular verb "is" . It should be "are". It amounts to abuse of words.

Option E:- Incorrect
This statement is correct but it takes the form of the original sentence which is clearly not what we want . Just a change of the inconsistent "thesis" doesn't qualify the option to be right