Assume a relation with attributes (A, B, C, D, E), and F is the set of functional dependencies: AB, CB, and BD. Then, find the

Assume a relation with attributes (A, B, C, D, E), and F is the set of functional dependencies: AàB, CàB, and BàD. Then, find the following:

1. Trivial functional dependencies in F+ (give any 3) 

2. Transitive functional dependencies in F+ 

3. Union functional dependencies in F+ 

4. Closure of B

5. Any candidate keys