Question: Suppose that we are given a relation schema R with four attributes, ABCD, and the set of FDs F = (AC -> B, AD ->

Suppose that we are given a relation schema R with four attributes, ABCD, and the set of FDs

F = (AC -> B, AD -> C, B - D ).

Assuming those are the only dependencies that hold for R, answer the following questions:

1. Is BC a superkey of R?

2. Is ABC a key of R?

3. Apply the appropriate algorithm to determine a key for R

4. Apply the appropriate algorithm to determine all the keys for R.

5. What is a prime attribute? Is attribute B a prime attribute?

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