Q:

‘A # B’ means ‘A is the brother of B’.
‘A @ B’ means ‘A is the daughter of B’.
‘A & B’ means ‘A is the husband of B’.
‘A % B’ means ‘A is the wife of B’.
If W % D # G @ B & M @ I, then how is D related to M?

• 1
  Father’s father
• 2
  Father
• 3
  Grandson
• 4
  Son