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.
Thank you for using the timer!
We noticed you are actually not timing your practice. Click the START button first next time you use the timer.
There are many benefits to timing your practice, including:
Learn how Kamakshi achieved a GMAT 675 with an impressive 96th %ile in Data Insights. Discover the unique methods and exam strategies that helped her excel in DI along with other sections for a balanced and high score.
At one point, she believed GMAT wasn’t for her. After scoring 595, self-doubt crept in and she questioned her potential. But instead of quitting, she made the right strategic changes. The result? A remarkable comeback to 695. Check out how Saakshi did it.
Verbal trouble on GMAT? Fix it NOW! Join Sunita Singhvi for a focused webinar on actionable strategies to boost your Verbal score and take your performance to the next level.
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
(N/A)
Question Stats:
100%
(02:31)
correct 0%
(00:00)
wrong
based on 6
sessions
History
Date
Time
Result
Not Attempted Yet
Paleontologists studying the fossil record have estimated that the current collection of known fossils accounts for only approximately 10% of all species that have ever existed.
a) studying the fossil record have estimated that the current collection of known fossils accounts for only approximately 10% of all species that
b) that study the fossil record have estimated that the current collection of known fossils is only 10% of all species that
c) studying the fossil record have estimated that the current collection of known fossils accounts for only 10% of all species that
d) who study the fossil record have estimated that the fossils currently collected are only approximately 10% of all species which
e) who study the fossil record estimate that the current collection of known fossils accounts for approximately 10% of all species which
Please explain your answer
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.
Still interested in this question? Check out the "Best Topics" block below for a better discussion on this exact question, as well as several more related questions.
Originally posted by tarek99 on 29 Nov 2007, 10:13.
Last edited by tarek99 on 29 Nov 2007, 10:17, edited 1 time in total.
Kudos
Add Kudos
Bookmarks
Bookmark this Post
The OA is C. Why? because in the original sentence, the word "estimate" and "approximately" are redundant. Also, although using either "that study" or "who study" could be appropriate, using the present participle "studying" is generally considered more concise.
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.