Study the following information carefully and answer the question given below:
'A - B' means 'A is sister of B'
'`A xx B`' means 'A is husband of B'
'A, B' means 'A is brother of B'
'A + B' means 'A is father of B'
In the expression A + B - C + D, E how is B related to E?

Options

A. Grandfather
B. Grandson
C. Daughter
D. none of these

Answer

D

Explanation

B is paternal aunt of E.