The minimum number of tables required to represent M, N, P, R1, R2 is
A. 2
B. 3
C. 4
D. 5
Answer:A
The minimum number of tables required to represent M, N, P, R1, R2 is
A. 2 B. 3 C. 4 D. 5
Explanation: Since R1 is many to one and participation of M is total, M and R1 can be combined to form the table {M1, M2, M3, P1}. N is a week entity set, so it can be combined with P.