Consider a relational schema S = (U, V, W, X, Y, Z) on which the following functional dependencies hold:{U → V, VW → X, Y → W, X → U}Which are the candidate keys among following options?

Consider a relational schema S = (U, V, W, X, Y, Z) on which the follo

1.	Consider a relational schema S = (U, V, W, X, Y, Z) on which the following functional dependencies hold:{U → V, VW → X, Y → W, X → U}Which are the candidate keys among following options?
A.	UY, VY
B.	UY, VY, XY
C.	UYZ, VYZ, VWZ
D.	UYZ, VYZ, XYZ
Answer» E.

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Consider a relational schema S = (U, V, W, X, Y, Z) on which the following functional dependencies hold:{U → V, VW → X, Y → W, X → U}Which are the candidate keys among following options?

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