DRDO Multi tasking staff Model paper 3

The correct answer is option 1 i.e. Brother.

Now we draw the family tree using the following notations:
A % B $ C @ D & E means “A is the brother of B”,”B is the sister of C”, “C is the son of D” and “Dis the mother of E”.
As D is the mother of E so A and E are siblings.
Hence, the correct answer is brother.