List all the ordered pairs in the relation
R = {(a, b) | a divides b} on the set {1, 2, 3, 4, 5, 6}.
Please explain your answer.
a. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6)
b. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 2) (2, 4) (2, 6)
c. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 2) (2, 4) (2, 6) (3, 3) (3, 6)
d. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 2) (2, 4) (2, 6) (3, 3) (3, 6) (4, 4) (5, 5)
e. (1, 1) (1, 2) (1, 3) (1, 4) (1, 5) (1, 6) (2, 2) (2, 4) (2, 6) (3, 3) (3, 6) (4, 4) (5, 5) (6, 6)
