A family of six includes parents S and T, their daughters U and V, and sons W and X. Y is V's daughter. How is Y related to W?
Correct: C
S and T are U's and V's parents, making them the grandparents of Y (V's daughter). W and X are U and V's brothers. Y is V's daughter, so Y is W's niece (as V is W's sister). W is the uncle of Y. Thus, Y is W's niece.