Given a R(A,B,C,D) with the following FDs:
AB->D
BC->A
AD->B
CD->B
AD->C
Choose a correct statement about R:
a. The FD set of R is not canonical and R is in BCNF
b. The FD set of R is canonical and R is not in BCNF
c. The FD set of R is not canonical and R is not in BCNF
Answer: A