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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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