Given the previous state which of the following dependencies may hold in the above relation?

If the dependency cannot hold explain why by specifying the tuples that cause the violation:-

I. A → B

II. B → C

III. C → B

IV. B → A

V. C → A

What does X → Y mean? It means, Y is functionally dependent on X.

Remember this trick “Keep Y value same and check if X is same too. If not, relation doesn’t hold.”

I. A → B

This dependency cannot hold, because A → B implies that A can uniquely …