Q41

MCQ2 marks, −0.67

Let $R$ be a relation on the set of ordered pairs of positive integers such that $((p,q),(r,s)) \in R$ if and only if $p-s=q-r$ . Which one of the following is true about $R$ ?

(A)

Both reflexive and symmetric

(B)

Reflexive but not symmetric

(C)

Not reflexive but symmetric

(D)

Neither reflexive nor symmetric

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