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Let A = {1, 2, 3}, which of the followin...

Let A = {1, 2, 3}, which of the following is not an equivalence relation of A { ( 1 , 1 ) , ( 2 , 2 ) , ( 3 , 3 ) }

A

(1,2), (2,2), (3,3)

B

(1,1), (2,2), (3,3), (1,2), (2,1)

C

(1,1), (2,2), (3,3), (2,3), (3,2)

D

none of these

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