contestada

Determine which relation is a function.
O {(-4, 1), (-2, 3), (-1, 2), (3, 5), (3, 2)}
O {(4, 1), (-2, 3), (-1, 1), (-1, 5), (3, 2)}
O {(-4, 1), (-2, 3), (-2, 1), (-1, 5), (3, 2)}
O {(-4, 3), (-2, 3), (-1, 2), (2,5), (3, 2)}