P is the uncle of Q. R is the sister of P. How is R related to Q?

A. AUNT

If D is the daughter of E, and E is the mother of F, what is the relationship of D to F?

A. SISTER

If M is the father of N and N is the son of O, what is the relationship of O to M?

C. WIFE

M is the grandmother of N. N has a brother O. How is M related to O?

C. GRANDMOTHER

N is the mother of O. P is the father of O. Q is the sister of P. How is O related to Q?

B. COUSIN