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MCQ
The relation R = {(1, 1), (2, 2), (3, 3)} on A = {1, 2, 3} is:
Unit-3 Sets and Relations
A reflexive
B empty
C not a relation
D symmetric but not reflexive
Explanation

Every element of {1, 2, 3} is related to itself, so R is reflexive (in fact it is also an equivalence relation).

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