2.
The range of the following relation: R: {(3, -2), (1, 2), (-1, -4), (-1, 2)} is (1 point)

a) {-1, 1, 3}

b) {-1, -1, 1, 3}

c) {-4, -2, 2, 2}

d) {-4, -2, 2}