A family of two generations consisting of six members P, Q, R, S, T and U has three males and three females. There are two married couples and two unmarried siblings. U is P 's daughter and Q is R 's mother - in - law. T is an unmarried male and S is a male. Which one of the following is correct?
1
R is U's husband.
2
R is S's wife.
3
S is unmarried.
4
None of the above.