A is the answer, I think.
The results of an analysis, on the makeup of garbage, done by the Environmental Protection Agency was published in 1990. Some of the results are given in the following table, which for various years gives the number of pounds per person per day of various types of waste materials.
Well, I know that there are 4 quarts in 1 gallon so the 1 gallon is 4 times greater than the 1 quart.
I hope this helps :)
C is the value of x to find it u use the equation 3x=338 and solve