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'
Which of the following is true expression? E+M-S+W.B

Options

A. B is daughter of S
B. E is grandfather of B
C. M is uncle of W
D. S is sister of M

Answer

B

Explanation

Hence E is grandfather of B.