Which table shows a proportional relationship?

Responses

| p 1 3 5 7 9
| q 6 8 10 12 14

| r 5 10 15 20 25
| s 1 2 3 4 5

| x 1 2 3 4 5
| y 4 7 10 13 16

| b 0 3 5 7 9
| c 0 4 8 12 16