Which relation is represented by the arrow diagram?


{(-0.5, -1), (1,7), (0.5, -0.2), (3.2, 1)}

{(3.2, 1), (0.5, -0.2), (1,1), (-0.5, 7)}

{(-1, -0.5), (7, 1), (-0.2, 0.5), (1, 3.2)}

{(-0.5, -1), (1, 7), (0.5, 1), (3.2, -0.2)}