Answer-How is O related to P?

Question

How is O related to

P? Answer the questions based on the information given below. There are six members O, P, Q, R, S and T in the family of three generations. No single person is a parent in the family. S is mother of R, whose gender is same as T. O is brother-in-law of T. P is mother of Q. O is the uncle of Q.

A Mother

B Father

C Brother

D Sister

E Uncle