He is . . . . . . . . university student.

A. an

B. the

C. any

D. a

Answer: Option D

Solution(By Examveda Team)

Using a or an depends on the sound that begins the next word.
The 'U' in university has a consonant sound of 'yoo' or 'you'. So despite the fact that the word 'university' starts with a vowel, because of its consonant sound we use 'a' instead of 'an'.