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Unfortunately, many students of mathematics are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that are breathtaking in both their profundity and beauty.

A. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that are breathtaking

B. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that had been breathtaking

C. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career had produced a number of theories that are breathtaking

D. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that is breathtaking

E. had been unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career had produced a number of theories that is breathtaking

Please explain your answer.


A should be it.

1. correct sequence of tense: .....are........ and ..........produced.
2. correct SV agreement: ......a number of theories that are..................
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briks123
It's definitely A.

The bolded portions indicate where B, C, D, and E are wrong:

B. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that had been breathtaking

Had been implies that this occured in the past somehow before another event.... however the results still ARE breathtaking, so 'had been' is wrong.

Quote:

C. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career had produced a number of theories that are breathtaking

Had produced implies that he produced these proofs BEFORE his career... past perfect tense is wrong here.

Quote:

D. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that is breathtaking

Obviously wrong

Quote:

E. had been unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career had produced a number of theories that is breathtaking


again had produced is wrong.
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Unfortunately, many students of mathematics are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that are breathtaking in both their profundity and beauty.

A. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that are breathtaking

B. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that had been breathtaking

C. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career had produced a number of theories that are breathtaking

D. are unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career produced a number of theories that is breathtaking

E. had been unaware of the contributions of Srinivasa Ramanujan, a genius who in his short career had produced a number of theories that is breathtaking

Please explain your answer.


A it is. A clearly states that students are unaware (currently). The mathematician produced a number of theories that are breathtaking is clear.

B. "that had been breathtaking" suggests that they are no longer breathtaking.

C. here had is not needed b/c simple past works just fine. Also we have no other previous happening in the past besides te creation of theories, thus no need for had.

D. "that is" does not agree w/ a number of. requires plural "are"

E. Students had been unaware? and "had produced" doesn't make sense.
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Agree with A

a number of theories ... are
simple past produced is correct
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Thanks guys, OA is A.



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