Let R = ABCDE is a relational scheme with functional dependency set F – McqOptions

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1.	Let R = ABCDE is a relational scheme with functional dependency set F = {A -> B, B ->C,AC -> D}. The attribute closures of A and E are
A.	ABCD, Ø
B.	ABCD, E
C.	ɸ , Ø
D.	ABC, E
Answer» C. ɸ , Ø

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