X is the mother of Y. Z is the father of Y. How is Z related to X?

B. HUSBAND

M is the daughter of N. O is the son of N. How is O related to M?

A. BROTHER

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

D. GRANDFATHER

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

A. COUSIN

A is the brother of B. C is the sister of A. D is the mother of B. How is C related to D?

A. DAUGHTER