Q.

Let R = {(3, 3), (6, 6), (9, 9), (12,12), (3,6), (6,3), (3, 9), (9, 3), (9, 12),(12,9)} be a relation on the set A = {3, 6, 9, 12}. The relation is _________

A. reflexive and transitive
B. reflexive and symmetric
C. symmetric and transitive
D. equivalence relation
Answer» D. equivalence relation
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