Which of the following relationships represents a function?
A.
(-3,0), (2,3), (-1,1), (2,5)
B.
(-3,4), (2,2), (-1,1), (5,2)
C.
(-3,4), (2,6), (-3,3), (5,2)
D.
(-3,4), (2,6), (2,3), (4,2)