'A % B' means 'A is the brother of B'

'A @ B' means 'A is the father of B'

'A= B' means 'A is the wife of B'

'A & B' means 'A is the mother of B'

Based on the above information, find out which of the given statements can be the reason/s behind the assertion made below if it is given that 'M % K = Z @L % C'.

Assertion: K is maternal grandmother of H?

Reason A : C & H
Reason B : N @ H​​

Expression: M % K = Z @ L % C

From the given information family tree will be:​

Assertion: K is maternal grandmother of H?

Reason A : C & H

This reason will give us K is maternal grandmother of H

Reason B : N @ H

N and H cannot fit in this given expression

So, Only A is the reason behind the assertion.

Thus, the correct option is: (d)