Study the following information carefully and answer the questions given below:
'P+Q -means-'P is sister of Q'
'P@Q' means 'P is father of Q'
'P-Q' means 'P is son of Q'
'P % Q' means 'P is mother of Q'
What will come in place of question mark (?) if 'A is grand son of B' is to be true in the given expression? B%D@A?E

Options

A. `+`
B. -
C. Either + or %
D. `%`

Answer

B

Explanation