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Let R be a relation on the set {1,2,3} ...

Let R be a relation on the set {1,2,3}
given by `R={(1,1),(2,2),(1,2),(2,1),
(2,3)}`.Which among the following
element to be included to R so that R
becomes Symmetric?

A

(3,3)

B

(3,2)

C

(1,3)

D

(3,1)

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