imboredandtiredandla imboredandtiredandla 10-12-2020 Mathematics contestada Which of the following is NOT a function? A. (2, 1), (4, 3), (6, 5), (8, 7) B. (2, 1), (4, 3), (6, 5), (8, 5) C.(2, 1), (4, 3), (6, 5), (2, 7) D. (2, 1), (4, 1), (6, 5), (8, 7)