Which of the following is NOT a superkey in a relational schema with attributes V,W, X, Y, Z and primary key V Y?

Which of the following is NOT a superkey in a relational schema with a

1.	Which of the following is NOT a superkey in a relational schema with attributes V,W, X, Y, Z and primary key V Y?
A.	VXYZ
B.	VWXZ
C.	VWXY
D.	VWXYZ
Answer» C. VWXY

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Which of the following is NOT a superkey in a relational schema with attributes V,W, X, Y, Z and primary key V Y?

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