Explanation:

- R and Q are children of T and S. This means T and S are a married couple.

- V is the father-in-law of W and is also the paternal uncle of R. V is thus T's brother.

- T has one son and one daughter, which are R and Q.

- P is the husband of O, and O is Q's daughter.

- M and N are siblings, and U, father of N, is R's spouse. Hence, U is married to R.

- S is the father-in-law of U, confirming R and U's marriage.

- W is married to X and V is her father-in-law, making X V's son.

To find how W is related to T:

- W is married to X, who is T's son (or T and W are in-laws by marriage).

Correct answer based on analysis:

- Daughter-in-law of T, which is Option 5.