1.  Which of the following means that N is the maternal uncle of M?

A. N ? P - L + E - M
B. N - Y + A ? M
C. M - Y * P - N
D. N ? C + F * M

Answer: Option A

Explanation:

N ? P ? N is the brother of P

P - L ? P is the sister of L

L + E ? L is the mother of E

E - M ? E is the sister of M.

Hence, L is the mother of M, P is the maternal aunt of M and N is the maternal uncle of M.