Let set = {1, 2, 3} and a relation r is defined in x as : = {(1, 3) , (2, 2) , (3, 2) }, then minimum ordered pairs which should be added in relation r to make it reflexive and symmetric are
a) {(1,1) , (2, 3) , (1, 2) }
b) {(3, 3) , (3, 1) , (1, 2) }
c) {(1, 1) , (3, 3) , (3, 1) , (2, 3) }
d) {(1, 1) , (3, 3) , (3, 1) , (1, 2) }