Correct option is B
Given :
P, Q, R, S, T, U, and V:
- P's exam is on Tuesday.
- R's exam is on Sunday.
- S's exam is immediately before R.
- Q's exam is immediately before S.
- Only three people have exams between U and Q.
- Only two people have exams between S and V.

Thus, the person who has the exam on Monday is U
Correct option : (b)