Last visit was: 19 Nov 2025, 11:37 It is currently 19 Nov 2025, 11:37
Close
GMAT Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track
Your Progress

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
Close
Request Expert Reply
Confirm Cancel
User avatar
lakshya14
Joined: 31 Jan 2019
Last visit: 27 Jul 2022
Posts: 360
Own Kudos:
Given Kudos: 529
Posts: 360
Kudos: 45
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
AndrewN
avatar
Volunteer Expert
Joined: 16 May 2019
Last visit: 29 Mar 2025
Posts: 3,502
Own Kudos:
7,511
 [2]
Given Kudos: 500
Expert
Expert reply
Posts: 3,502
Kudos: 7,511
 [2]
2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
ramlala
Joined: 22 Aug 2020
Last visit: 13 Dec 2022
Posts: 469
Own Kudos:
Given Kudos: 30
Location: India
Concentration: International Business, Finance
GPA: 4
WE:Project Management (Energy)
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
Raman109
Joined: 17 Aug 2009
Last visit: 28 Jul 2025
Posts: 805
Own Kudos:
Given Kudos: 33
Posts: 805
Kudos: 170
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Doctors hope that one day the body’s master cells, called stem cells, can be directed to grow in organs or tissues appropriate for transplant, use them to test drugs and potentially toxic chemicals, and may study them to gain insight into basic human biology.

Option elimination -

(A) transplant, use them to test drugs and potentially toxic chemicals, and may study them - the reference of them is wrong. It can refer to organs or tissue - wrong.

(B) transplant, using them to test drugs and potentially toxic chemicals, and studied - comma + ING acts as an adverbial and goes back to the main subject (so nothing wrong in the usage) but when compared with C, the parallelism is conveyed better. Moreover, it seems the use of master stem cells to test drugs and potentially toxic chemicals is an important use, putting it in the commas makes it nonessential, which can be eliminated.

(C) transplant, used to test drugs and potentially toxic chemicals, and studied - perfect parallelism.

(D) a transplant, use them for testing drugs and potentially toxic chemicals, and for studying - the reference of them is wrong. It can refer to organs or tissue - wrong. Also, parallelism is broken.

(E) a transplant, used to test drugs and potentially toxic chemicals,and may study them - the reference of them is wrong. It can refer to organs or tissue - wrong. Also, parallelism is broken.
User avatar
VerbalBot
User avatar
Non-Human User
Joined: 01 Oct 2013
Last visit: 04 Jan 2021
Posts: 18,829
Own Kudos:
Posts: 18,829
Kudos: 986
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Hello from the GMAT Club VerbalBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
   1   2 
Moderators:
GMAT Club Verbal Expert
7443 posts
GMAT Club Verbal Expert
231 posts
189 posts