Directions: Study the following information carefully and answer the questions given below:

Z is married to C. B and D are the children of C. D is married to the daughter of K, who is married to M. K is the mother of R, who is the husband of N. H is the grandson of C and K. L is the son of N. V is the only sister of H. Both C and V are of the same gender. O is one of the family members.