7. Which of these relations on the set of all people are equivalence relation? a) {(x, y)\x and y are the same age} b) {(x, y)\x and y have the same parents} c) {(x,y)|x and y share a common parent}

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A:

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A: a. S = {0, 1, 2, 3}, R = {(0,0), (1, 1), (1, 2), (2, 1), (2,2), (2, 3), (3, 3)} Reflexive: Yes. We…

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A:

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