Let $I$ be the set of positve integers. $R$ is a relation on the set $I$ given by $R =\left\{ {\left( {a,b} \right) \in I \times I\,|\,\,{{\log }_2}\left( {\frac{a}{b}} \right)} \right.$ is a non-negative integer$\}$, then $R$ is 

  • A

    neither symmetric not transitive but reflexive.

  • B

    reflexive, transitive but not symmetric

  • C

    neither reflexive non transitive but symmetric

  • D

    equivalence relation.

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