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0. Suppose that R1 and R2 are reflexive relations on a set A. Which of the following statements is correct ?
R1 ∩ R2 is reflexive and R1 ∪ R2 is irreflexive.
R1 ∩ R2 is irreflexive and R1 ∪ R2 is reflexive.
Both R1 ∩ R2 and R1 ∪ R2 are reflexive.
Both R1 ∩ R2 and R1 ∪ R2 are irreflexive.
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