Identify the table, graph, or mapping diagram that represents a function. A. The set of ordered pairs: {(1, 8), (2, 10), (3, 4), (1, 7), (4, 9)} B. x 10 22 22 30 40 y 20 22 20 30 10 C. The set of ordered pairs: {(4, 2), (2, 4), (3, 5), (5, 3), (3, 4)} D. E. x 10 20 30 40 y 20 20 30 10