Last visit was: 24 Apr 2026, 13:47 It is currently 24 Apr 2026, 13:47
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
clubzzang
Joined: 22 Jun 2008
Last visit: 21 Aug 2008
Posts: 57
Own Kudos:
755
 [1]
Posts: 57
Kudos: 755
 [1]
1
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
bajaj
Joined: 25 Jun 2008
Last visit: 06 Oct 2008
Posts: 5
Own Kudos:
Posts: 5
Kudos: 2
Kudos
Add Kudos
Bookmarks
Bookmark this Post
avatar
pmenon
Joined: 28 Dec 2005
Last visit: 01 Jul 2009
Posts: 691
Own Kudos:
Given Kudos: 2
Posts: 691
Kudos: 620
Kudos
Add Kudos
Bookmarks
Bookmark this Post
User avatar
goalsnr
Joined: 03 Apr 2007
Last visit: 17 Oct 2012
Posts: 625
Own Kudos:
Given Kudos: 10
Products:
Posts: 625
Kudos: 5,121
Kudos
Add Kudos
Bookmarks
Bookmark this Post
clubzzang
Kate San's study, published in Nature, shows that the ancients lined up the pyramids with two stars whose alignment was only true around 4,500 years ago,which makes it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, which makes it possible to pinpoint what people probably think was the start of construction of Khufu's Great Pyramid at Giza to around the year 2467 BC.

A) which makes it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, which makes it possible to pinpoint what people probably think was the start

B) which makes it impossible to stick to the margin of error in the archaeological chronology of ancient Egypt, which was plus or minus 100 years in favor of one which is only five years, pinpointing the probable start

C) suggesting that the margin of error for the archaeological chronology of ancient Egypt is no longer plus or minus 100 years, but rather only five years, which suggests the possibility of pinpointing the probable start

D) making improvements in the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, pinpointing the probable start

E) making it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, pinpointing the probable start.

stuck between D and E

making improvements in the margin of error ...., from plus or minus 100 years to only five years,
making it possible to improve the margin of error ......, from plus or minus 100 years to only five years,

E sounds better

E
User avatar
bhatiagp
Joined: 01 Jan 2008
Last visit: 06 Jan 2021
Posts: 371
Own Kudos:
Concentration: General Management , Strategy
Products:
Posts: 371
Kudos: 119
Kudos
Add Kudos
Bookmarks
Bookmark this Post
Can someone please explain why E:

Isnt the "it" in E : unclear
User avatar
goalsnr
Joined: 03 Apr 2007
Last visit: 17 Oct 2012
Posts: 625
Own Kudos:
Given Kudos: 10
Products:
Posts: 625
Kudos: 5,121
Kudos
Add Kudos
Bookmarks
Bookmark this Post
E:Kate San's study, published in Nature, shows that the ancients lined up the pyramids with two stars whose alignment was only true around 4,500 years ago,making it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, pinpointing the probable start of construction of Khufu's Great Pyramid at Giza to around the year 2467 BC.

What does " it" refer to in E?
I think its refers to a phrase.
What is being made possible?
Answer - The ability to improve the margin of error
User avatar
gdmat720
Joined: 07 May 2008
Last visit: 24 Jul 2009
Posts: 7
Own Kudos:
Posts: 7
Kudos: 6
Kudos
Add Kudos
Bookmarks
Bookmark this Post
clubzzang
Kate San's study, published in Nature, shows that the ancients lined up the pyramids with two stars whose alignment was only true around 4,500 years ago,which makes it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, which makes it possible to pinpoint what people probably think was the start of construction of Khufu's Great Pyramid at Giza to around the year 2467 BC.

A) which makes it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, which makes it possible to pinpoint what people probably think was the start

B) which makes it impossible to stick to the margin of error in the archaeological chronology of ancient Egypt, which was plus or minus 100 years in favor of one which is only five years, pinpointing the probable start

C) suggesting that the margin of error for the archaeological chronology of ancient Egypt is no longer plus or minus 100 years, but rather only five years, which suggests the possibility of pinpointing the probable start

D) making improvements in the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, pinpointing the probable start

E) making it possible to improve the margin of error in the archaeological chronology of ancient Egypt, from plus or minus 100 years to only five years, pinpointing the probable start.

i was stuck between D and E
E for me tooo
because
D misses out on the word possible... that changes the meaning of the sentence
.
User avatar
clubzzang
Joined: 22 Jun 2008
Last visit: 21 Aug 2008
Posts: 57
Own Kudos:
Posts: 57
Kudos: 755
Kudos
Add Kudos
Bookmarks
Bookmark this Post
OA is E. The following is an OE.

This one is a little more difficult because the sentence is somewhat cumbersome. Answer B is wrong because it made it possible, not impossible. Answers A and C are just too wordy, and answer D is wrong because the finding didn't make improvements in the margin of error exactly, it made it possible to improve the margin of error on the estimates. Answer E is the best choice.



Archived Topic
Hi there,
This topic has been closed and archived due to inactivity or violation of community quality standards. No more replies are possible here.
Where to now? Join ongoing discussions on thousands of quality questions in our Sentence Correction (SC - EA only) Forum
Still interested in this question? Check out the "Best Topics" block above for a better discussion on this exact question, as well as several more related questions.
Thank you for understanding, and happy exploring!
Moderators:
GMAT Club Verbal Expert
7391 posts
504 posts
358 posts