Direction: Read the information given below and answer the question that follows.

There are eight members in a family – D, S, G, O, A, E, P and R. There are two married couples in this family. A is the brother-in-law of E, who is the only son of S. O is the father-in-law of D, who is the only sister of A. P is the niece of A. G is the maternal grandfather of R. E has only one son and one daughter.