A nurse is preparing to administer tobramycin 4 mg/kg/day IM divided in three equal doses to a patient who weighs 60 kg. Available is tobramycin 40 mg/mL. How many mL should the nurse administer per dose?
A) 0.5 mL
B) 1 mL
C) 1.5 mL
D) 2 mL