Which set of ordered pairs does NOT represent a function?
PLEASE HELP HURRY

A. {(1, 2), (1, 3), (1, 4)}

B. {(2, 3), (3, 3), (4, 3)}

C. {(2, 2), (3, 3), (4, 4)}

D. {(0, 0), (1, 3), (2, 6)}