P is the son of Q . Q is mother of R. R is wife of T. T is father of V. V is brother of W. Y is mother of T .
Which of the following is /are required to establish what W is the daughter of R ?

Options

A. No extra information is required as the realtion can be established from the given information
B. R has only two , children , one son and one daughter.
C. Q has only the grandson
D. Y has only tow children , a son and a daughter

Answer

B

Explanation

(b)
If R has one son and two daughters, then W is the daughter of R .