Consider a relation R(A,B,C). A functional dependency AB →C holds on R. Then it is also true that: a. A→C holds on R. b. B→C holds on R. c. AB is a key. d. Both A & B are true.
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Consider a relation R(A,B,C). A functional dependency AB →C holds on R. Then it is also true that: a. A→C holds on R. b. B→C holds on R. c. AB is a key. d. Both A & B are true.