If A + B means A is the mother of B ; A / B means A is the brother of B ; A x B means A is the son

If A + B means A is the mother of B ;
A / B means A is the brother of B ;
A x B means A is the son of B and
A - B means A is the daughter of B,
which of the following means C is the niece of D ?

Option:

A. D - C

B. D x P - C

C. C - P / D

D. P + D / C

E. D - P / C

Answer: C . C - P / D

Justification: C is the niece of D means C is the daughter of the brother (say P) of D i.e. C - P / D