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Mathematics, 10.04.2020 17:55 chambersjamal05

For a relation R with schema R (A, B, C, D), let us assume that A is the primary key. And, R consists of the set of functional dependencies F = {A โ†’ B, A โ†’ C, AB โ†’ C, C โ†’ D}.
Which of the following would violate the 3NF rule? Why?
(a) AB โ†’ C
(b) C โ†’ D
(c) A โ†’ BCD
(d) None of the above

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