In the following question, out of the four alternatives, select the alternative which will improve the underlined part of the sentence. In case no improvement is needed, select “No improvement”. India expressed concern at the arrest of 130 Indian students enrolling at a fake university in Detroit. ?

Option 3 : Enrolled at a fake university

The correct answer is option 3), i.e., Enrolled at a fake university.

•  Explanation:
•  The sentence uses the present progressive form 'enrolling'; which is incorrect.
•  The first verb of the sentence is the simple past tense 'Expressed'.
•  Important Point:
•  This suggests that the second verb must also be in its simple past tense form.
•  The simple past tense form of the given verb is 'Enrolled'.

Thus, the rectified sentence is: India expressed concern at the arrest of 130 Indian students enrolled at a fake university in Detroit.