Correct Answer: A is the maternal grandfather of T

Solution : Given:
A + G & I + R @ S @ T # U & V

The family tree will be as follows –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
Let's check the options –
First option: I is the father-in-law of U – From the above family tree, it is evident that I is the father-in-law of U.
Second option: A is the maternal grandfather of T – From the above family tree, it is evident that I is the father of T, and A is the father of I. So, A is the paternal grandfather of T.
Third option: G is the brother of I – From the above family tree, it is evident that G is the brother of I.
Fourth option: R is the paternal granddaughter of A – From the above family tree, it is evident that I is the father of R, and A is the father of I. So, R is the paternal granddaughter of A.

Hence, the second option is correct.