For a relation R(A, B, C, D, E) with set of functional dependencies F = {AB → E, D → C}, which of the following is a candidate key?
A. ABCD
B. ABD
C. BCD
D. ACD
Answer:B
For a relation R(A, B, C, D, E) with set of functional dependencies F = {AB → E, D → C}, which of the following is a candidate key?
A. ABCD B. ABD C. BCD D. ACD