There are 8 members T, U, V, W, X, Y and Z in a family. Z is grandfather of U and father of X.  Y is mother of T.  V is mother of U, and wife of X.  T is sister of X.  W is mother of V,  U is sister of S.  How X is related to W ?

Son-in-law

Note:

↑ or ↓ ⇒ Upward or downward line shown "generation gap" .

   =    ⇒ Double lines shown "relation b/w Husband & Wife"

   —   ⇒ single line shown "relation in same generation other than Husband & Wife".

   +   ⇒ Plus sign shown " Male".

   -   ⇒ Plus sign shown " Female".

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So, correct answer is option (2).