Tricky SC from GMATPrep

mim3 · Posted: Tue May 27, 2008 6:41 pm Post subject: Tricky SC from GMATPrep

Thoughts?

Recently documented examples of neurogenesis, the production of new
brain cells, include the brain growing in mice when placed in a
stimulating environment or neurons increasing in canaries that learn
new songs.

A. the brain growing in mice when placed in a stimulating environment or
neurons increasing in canaries that

B. mice whose brains grow when they are placed in a stimulating
environment or canaries whose neurons increase when they

C. mice's brains that grow when they are placed in a stimulating
environment or canaries' neurons that increase when they

D. the brain growth in mice when placed in a stimulating environment or
the increase in canaries' neurons when they

E. brain growth in mice that are placed in a stimulating environment or
an increase in neurons in canaries that

HarvardDreamin · Posted: Tue May 27, 2008 9:20 pm Post subject:

Tough one - thinking E. What is the correct answer?

netigen · Posted: Tue May 27, 2008 10:02 pm Post subject:

In my opinion, Ans is B

(A) documented and growing do not go together
(B) they is ambiguous but this is the only parallel answer
mice whose brains grow when they are placed in a stimulating environment or canaries whose neurons increase when they
(C) they seems to point to brains
(D) they seems to point to neurons
(E) not parallel
brain growth in mice that are placed in a stimulating environment or an increase in neurons in canaries that

rattanas · Posted: Tue May 27, 2008 10:44 pm Post subject:

b,c ,d are out as they is ambiguous if pointin to brains or mice ..or canary or neurons...
is the OA "A"

rdadbhawala · Posted: Tue May 27, 2008 10:49 pm Post subject: I think D

Examples of neurogenesis can't be mice and canaries; it can be brain growth in mice and increase of neurons in canaries. That does away with B and C.
A does not use the right noun form "growth".
Now left with D and E.
E uses " ... brain growth ... an increase ... ". I would prefer not to use the word "an".

Hence I'll choose D. But I still have my doubts.

netigen · Posted: Tue May 27, 2008 11:09 pm Post subject:

OA is D

as rdadbhawala pointed out the e.g. of neurogenesis can not be mice and canaries. Hence, the ans will be between D and E

D is more parallel and hence the ans

mim3 · Posted: Wed May 28, 2008 5:25 am Post subject:

HarvardDreamin · Posted: Thu May 29, 2008 3:11 pm Post subject:

rattanas · Posted: Fri May 30, 2008 6:56 am Post subject:

i guess "d" has "they" which seems ambiguous..so "e" is rgt

HarvardDreamin · Posted: Sat May 31, 2008 2:45 am Post subject:

s_raizada · Posted: Sun Jun 08, 2008 11:27 am Post subject:

guys,

I took GMATPrep today and the correct answer is E

OA is not D but E!!!!!!!!!!!!!!!

D - they is ambigous