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Which one is based on multi-valued dependency:

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Which one is based on multi-valued dependency:

(a) First

(b) Second

(c) Third

(d) Fourth

I had been asked this question during an online interview.

This question is from Atomic Domains in chapter Database Systems Design and Implementation of Database Management

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The correct choice is (d) Fourth

To explain: One of the more desirable normal forms that we can obtain is Boyce–Codd normal form (BCNF). It eliminates all redundancy that can be discovered based on functional dependencies.

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