Which of the following tables represents a proportional relationship?
A.
X
3
4
5
6
y
12
16
20 30
B.
х
1
2.
5
10
у
4
8 15 30
O C.
х
4
5
6
7
y
16 20
30 35
D.
x
2
3
5
6
y
00
12 20
24