Answer the following question based on the information given below.

(A) 'P$$\times$$Q' means 'P' is father of Q
(B) P$$-$$Q means 'P' is sister of Q
(C) 'P$$+$$Q' means 'P' is mother Q
(D) 'P$$\div$$Q' means 'P' is brother of Q

Then $$B + D \times M \div N$$, how is M related to B

A

Grand Father

B

Son

C

Grandson

D

Grandmother