Which, among the following option(s) , is/are definitely

true? Answer the questions based on the information given below. There are seven persons L, M, N, O, P, Q and R in a family of three generations. No single person in the family is a parent. Q is the only daughter of N. L is the granddaughter of N. Q is unmarried. R is the daughter-in-law of P, who is the mother of O. O is not the spouse of R.

A N is the father of Q

B P is the grandmother of L