Megan and Desmond each added the same amount of water to their aquariums. Megan mixed 5 mL of a chemical solution with every gallon of water for her aquarium. Desmond mixed 8 mL of the chemical solution with every 2 gallons of water for his aquarium. Which of these statements is true?

A
Megan used more solution per gallon of water than Desmond, because 5 mL is greater than 2 mL.

B
Megan used more solution per gallon of water than Desmond, because 5 : 1 is greater than 8 : 2.

C
Desmond used more solution per gallon of water than Megan, because 8 : 2 is greater than 5 : 1.

D
Desmond used more solution per gallon of water than Megan, because 8 mL is greater than 5 mL.