Q16

MCQ1 mark, −0.33

Let $R$ be the relation on the set of positive integers such that $aRb$ if and only if $a$ and $b$ are distinct and let have a common divisor other than $1.$ Which one of the following statements about $R$ is true?

(A)

$R$ is symmetric and reflexive but not transitive

(B)

$R$ is reflexive but not symmetric not transitive

(C)

$R$ is transitive but not reflexive and not symmetric

(D)

$R$ is symmetric but not reflexive and not transitive

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