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5.Let R={(2, 3), (3, 3), (2, 2), (5,5), (2, 4), (4,4), (4,3)} be a relation on the set (2, 3, 4, 5),then:(A) R is reflexive and symmetric but not transitive(B) R is reflexive and transitive but not symmetric(C) R is symmetric and transitive but not reflexive(D) R is an equivalence relation

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