B is the father of C. C is the brother of Q. Q is the son of M's son. M is married to T. B is the only son of T. T is the mother of U. How is T related to Q?

Correct option is D

Given - B is the father of C. C is the brother of Q. Q is the son of M's son. M is married to T. B is the only son of T. T is the mother of U.

Explanation --

T is father’s mother of Q

hence option d is correct.