If 'A + B' means that A is the mother of B, A `div` B means that A is the brother of B, A`xx` B means that A is the son of B, A - B means that A is the sister of B, which of the following means that C is the sister of D ?

Options

A. C - P `div` D
B. P + D `div` C
C. D `xx` P-C
D. D - C

Answer

A

Explanation

C - P = C is the sister of P.
P + D = P is the brother of D.
So, C sister of P brother of D.
Therefore, .C is the sister of .D.