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Let S be set of all real numbers and...

Let S be set of all real numbers and let R be relation on s , defined by `a R b hArr |a-b|le 1.` then R is

A

symmetric and transitive but not reflexive

B

reflexive and transitive but not symmetric

C

reflexive and symmetric but not transitive

D

an equivalence relation

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The correct Answer is:
c
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