Which representation represents a proportional relationship?

A
x
2
4
6
8
y
6
8
10
12

B
y = 2 x + 2

C
On a coordinate plane, a line goes through points (negative 1, 0) and (0, 1).

D
x
4
7
12
15
y
8
14
24
30
A
B
C
D

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