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Which of one of the following relations ...

Which of one of the following relations on `R` is equivalence relation

A

`aR_(1)b hArr|a|=|b|`

B

`aR_(2)b hArr a geb`

C

`aR_(3)b hArr a` divides b

D

`aR_(4) b hArr a lt b`

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The correct Answer is:
A
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