Question: Here s a relation [ R ] , its attributes and its functional dependencies [ F ] : R ( A , B , C

Heres a relation [ R ],
its attributes and its functional dependencies [ F ]:
R(A, B, C, D, E)
C D->B
A->D
E->C
Which of the following are superkeys?
{ABE}
{ABCDE}
{A}
{BCE}
{AE}
{AB}

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