or each of the relations on A ={1, 2, 3} below, R= {(1, 1), (1, 3), (3, 3)}, S = {(1, 1), (1, 2), (1, 3), (2, 1), (2, 2), (3, 3)}, T = {(1, 2), (2, 1), (2, 2)}, determine whether they are reflexive, symmetric, or transitive. Provide the reasons if they are not reflexive, symmetric, or transitive.