(10 POINTS) CORRECT ONLY WRONG ANSWERS WILL BE REPORTED!!!!!
Which of the sets of ordered pairs represents a function?
A = {(2, −2), (5, −5), (−2, 2), (−5, 5)}
B = {(4, 2), (4, −2), (9, 3), (9, −3)}
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A. Only A
B. Only B
C. Both A and B
D. Neither A nor B
