Read the following information carefully and answer the questions given below it:

P` div` Q means P is the father of Q
P+Q means P is the mother of Q
P-Q means P is the brother of Q
P `xx `Q means P is the sister of Q
If `A+B divC-D, `then A is D's

Options

A. sister
B. grandfather
C. grandmother
D. father

Answer

C

Explanation

Choice 2 and 4 are wrong as A+ B menas A is a mother, hence a female. Generation gap between A and D is `(+1) + (+1) + (0) = 2` So, A must be a grandother.