question_answer

Direction: In the following questions, a part of the sentence is printed in bold. Below are given alternatives to the bold part at [a]. [b] and [c] which may improve the sentence. Choose the correct alternative. In case no improvement is needed, your answer is [d].

By studying AIDS has engaged many researchers in the last decade.

A)  Important study

B)  Now that the study

C)  The study of

D)  No improvement