Final answer:
Harper used more lemon per gallon of water than Ryder.
Step-by-step explanation:
To determine which of the given statements is true, we need to compare the ratios of lemon to water for Harper and Ryder.
For Harper, the ratio is 2 cups of lemon for every gallon of water, which can be written as 2:1.
For Ryder, the ratio is 5 cups of lemon for every 3 gallons of water, which can be simplified to 5:3.
From comparing the ratios, we can see that Harper used more lemon per gallon of water than Ryder. Therefore, the correct statement is B) Harper used more lemon per gallon of water than Ryder.