P is the brother of W. W is the father of R. T is the father of J. J is the son of R. How is T related to P?

The correct option is Brother's daughter's husband.

Let's break down the relationships step-by-step to understand how T is related to P:
1. P is the brother of W: This tells us that P and W are siblings, and P is male.
2. W is the father of R: Since W is the father of R, W is male. R is the child (son or daughter) of W. Consequently, R is the niece or nephew of P (since P is W's brother).
3. J is the son of R: J is a male child belonging to R.
4. T is the father of J: Since J is the son of R, and T is the father of J, R and T must be partners. Since T is the father (male), R must be the mother (female). This means R is the daughter of W.
5. Connecting R and P: Since R is the daughter of W, and P is the brother of W, R is P's brother's daughter (niece).
6. Connecting T and P: T is married to R (the daughter of P's brother W). Therefore, T is P's brother's daughter's husband.