QUICKLY HELP! Which table shows a proportional relationship between x and y?

Ax 7 14 28 35

y 1 2 4 5


b.x 2.5 3 5 6

y 5 6 10 15

Cx 1 2 3 4

y 4 10 12 16



Dx 1 3 4 7

y 2 5 8 14


Sorry bout the spaces in them