the table shows the amount of green paint that can be added to different amounts of white paint while making a custom paint color:

paint color
quarts of green paint quarts of white paint
3 6
4 8
5 10
6 12

which statement is true about the ratio of green paint to white paint in the paint color?
it is 1: 2.
it is 2: 1.
it is 1: 3.
it is 3: 1.