Ampicillin Comes in a Vial Containing 25 G of Ampicillin

Ampicillin comes in a vial containing 25 g of ampicillin. It can be diluted with sterile water for injection in volumes of 104.5 mL (final concentration 200 mg/mL) , 79.0 mL (final concentration 250 mg/mL) , or 41.0 mL (final concentration 400 mg/mL) . If the 25 g ampicillin vial is diluted with 41.0 mL of sterile water, how many mL would be given to an animal needing a 1,200-mg dose of ampicillin?

A) 6 mL
B) 3 mL
C) 2 mL
D) 4 mL