If M + N means M is the sister of N, N × O means N is the mother of O, and O - P means O is the brother of P, what is the relationship of M to P in M + N × O - P?
Answer: A. M is P's aunt
M + N means M is the sister of N, N × O means N is the mother of O, and O - P means O is the brother of P, so M is P's aunt.