1I alone is sufficient while II alone is not sufficient
2II alone is sufficient while I alone is not sufficient
3Either I or II is sufficient
4Both I and II are sufficient
From I, we know that L is T's brother and J's husband. Since L is the only son of his parents, T is L's sister.
From II, we know that K is L's daughter.
Thus, from I and II, we conclude that T is the sister of K's father i.e. T is K's aunt.