Beatrix and Armando each used the same amount of fertilizer on their gardens. Beatrix mixed 18 grams of powdered fertilizer with every 2

gallons of water for use in her garden. Armando mixed 21 grams of

powdered fertilizer with every 3 gallons of water for use in his garden.

Which of these statements is true?

A. Armando used more powdered fertilizer per gallon of water than Beatrix, because 21:3 is greater than 18:2

B. Armando used more fertilizer per gallon of water than Beatrix, because 21 g is greater than 3 g.

C. Beatrix used more powerful fertilizer per gallon of water than Armando, because 18:2 is greater than 21:3.

D. Beatrix used more powdered fertilizer per gallon of water than Armando, because 18 g is greater than 3 g.