Given its authoritative coverage of other science topics,

Question

Given its authoritative coverage of other science topics,  the textbook's chapter on genetics is surprisingly tentative, which leads one  to doubt the author's scholarship in that particular area.
A. the textbook's chapter on genetics is surprisingly tentative, which leads
B. the chapter of the textbook on genetics is surprisingly tentative, leading
C. the textbook contains a surprising and tentative chapter on genetics, which leads
D. the textbook's chapter on genetics is surprisingly tentative and leads
E. the textbook is surprisingly tentative in its chapter on genetics, leading

maratikus · Answer

A, B, D are out because of reference to the chapter instead of the textbook
C is out because "surprising and tentative" instead of "surprisingly tentative"

E is the correct answer

moni77 · Answer

I think the correct answer is C.
The textboo's chapter is incorrect.
 Given its authoritative coverage of other science topics  requires the word textbook to be used.
So we can eliminate A, B, D. Remains C and E to choose from. I choose C because IMO suggests that the chapter in genetincs leads to doubt the author's scolarhip in that area (genetic), not the whole textbook.

hanumayamma · Answer

Sentence has modifier issue – Introductory phrase requires to modify the textbook not the chapter or the textbook’s chapter – eliminate A, B and D

A. the textbook's chapter on genetics is surprisingly tentative, which leads
B. the chapter of the textbook on genetics is surprisingly tentative, leading
C. the textbook contains a surprising and tentative chapter on genetics, which leads  which is modifying/referring genetics not the description or action of preceding clause – eliminate it] 
D. the textbook's chapter on genetics is surprisingly tentative and leads
E. the textbook is surprisingly tentative in its chapter on genetics, leading

Answer: E

jay02 · Answer

E it is

C: "surprising and tentative" has a VERY ambegious and different meaning (though they are usually bad in my case,  surprises  can also be good) from "surprisingly tentative (E)"

gixxer1000 · Answer

A, B, and D are out for wrong comparisons.
C is out because it implies that the chapter is surprising and not the fact that the chapter is tenative is surprising.
Leaves me with E.

neerajch · Answer

textbook is the correct modifier, so this leaves us with C and E.

The chapter is surprisingly tentative not surprising and tentative. So ==> E. the textbook is surprisingly tentative in its chapter on genetics, leading

GMAT TIGER · Answer

Chose E. 
A and D are wrong as "textbook's" is not correct. 
B (the chapter ofthe textbook) is also indirect.
C has wrong "S-C" (which and leads).
E wins..

brothers · Answer

I go with E,.
I feel that IMO suggests that the textbook on the wholeleads to doubt the author's scolarhip in that area (genetic), not the single chapter.

starperformer · Answer

I am confused between C and E too...
In E :

the textbook is surprisingly tentative in its chapter on genetics

doesn't make sense

In C too ...there are mistakes...

What is OA ??

Given its authoritative coverage of other science topics,

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