Let \( R \) be a relation on the set \( N \) of natural numbers defined by \( n \mathrm{R} m \) ...

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Let \( R \) be a relation on the set \( N \) of natural numbers defined by \( n \mathrm{R} m \) if \( n \) divides \( m \). Then \( R \) is :
(A) Reflexive and symmetric
(B) Transitive and symmetric
(C) Equivalence
(D) Reflexive, transitive but not symmetric.
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