Database Functional Dependency rules 1.

a. Does AB -> D hold for relation R? Why or why not?

b. Give a minimal basis for relation R.

Let R(A,B,C,D,E,F) be a relation and let T(K,L,M,N) be another. ABC,BD,EF are FD's which hold for relation R KM,LM,MN are FD's which hold for relation T