‘A @ B’ means ‘A is the wife of B’

‘A = B’ means ‘A is the brother of B’

‘A # B’ means ‘A is the son of B’

‘A & B’ means ‘A is the father 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 ‘P = F & G @ M # L’.

Assertion: T is paternal grandfather of R?

Reason A : L @ T

Reason B : G + R​​

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Expression :  ‘P = F & G @ M # L’.

Assertion: T is paternal grandfather of R?

Reason A : L @ T

This reason will not give us - T is paternal grandfather of R.

Reason B : G + R​​

This reason will not give us - T is paternal grandfather of R.

Now from both reasons A and B 

We can find that T is paternal grandfather of R.

Thus, correct option is (a).