H is the uncle of I. J is the sister of I. How is H related to J?

B. UNCLE

O is the grandmother of P. Q is the mother of P. R is the father of P. How is O related to R?

A. MOTHER-IN-LAW

K is the daughter of L. M is the son of L. N is the wife of M. How is K related to N?

D. SISTER

O is the grandmother of P. Q is the mother of P. R is the father of Q. How is R related to P?

A. GRANDFATHER

If A is the brother of B and C is the sister of B, what is C to A?

A. SISTER