An award is given every year to the student ______

Question

has the highest grade-point average. Fill in the blank
A) whom
B) who
C)which
D) that

I think B but could be D. Could someone advise me.

Answer 1

Both B and D are grammatically correct and commonly used, but technically "who" is the correct relative pronoun to refer to a person. So, the answer is B) who.