01 For the relation R(A,B,C,D,E) with FD set {B + A, A, C, BC - D, AC + BE} (a) Show that AC and BC are NOT candidate keys of R. What are candidate keys of R (6) Which of the following is a good decomposition i R1(A, C, D) and R2(B, A, E) ii. R1(A, C, D, E) and R2(C, D, E) (C) Should R be decomposed or should it be accepted as such