Judgment of reflexive antisymmetric transitivity X = {1,2,3,4}. If r = {(1,1) (2,3) (2,4) (3,4)} on X, then r has () A: Reflexivity B: anti reflexivity C: symmetry D: transitivity

Judgment of reflexive antisymmetric transitivity X = {1,2,3,4}. If r = {(1,1) (2,3) (2,4) (3,4)} on X, then r has () A: Reflexivity B: anti reflexivity C: symmetry D: transitivity

A