Determine which relation is a function.
O {(-3, 2), (-1,3), (-1, 2), (0, 4), (1, 1)}
O {(-3, 2), (-2, 3), (-1, 1), (0, 4), (0, 1)}
O {(-3, 3), (-2, 3), (-1, 1), (0,4), (0, 1)}
O {(-3, 2), (-2, 3), (-1, 2), (0,4), (1, 1)}