Which relation is a function?
A. (1.0), (3.0), (1, 1), (3, 1)(1.3)
acation
O
B. (1, 1), (2, 2), (3, 3), (4,4), (5,8)
O C. (2,7). (6.5), (4, 4), (3, 3), (2, 1)
OD. (9.-3). (9.3), (4, -2), (4,2), (0,0)
4/1