Question: The answer is C. Can someone please explain why? 7. Let R and S be binary relations on a set A. Suppose that R is

The answer is C. Can someone please explain why? 7. Let

The answer is C. Can someone please explain why?

7. Let R and S be binary relations on a set A. Suppose that R is an Equivalence Relation and that S is symmetric, and transitive but is not reflexive. Which statement is always true for any such R and S? (a) RUS (b) RUS is symmetric but not reflexive. (c) RUS is transitive and symmetric but not reflexive (d) RUS is reflexive and symmetric is symmetric but not reflexive and not transitive

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