A Nurse Transcribes a New Prescription for Potassium Penicillin G

A nurse transcribes a new prescription for potassium penicillin G given intravenously (IV) every 8 hours and gentamicin given IV every 12 hours. Which is the best schedule for administering these drugs?

A) Give the penicillin at 0800, 1600, and 2400; give the gentamicin [Garamycin] at 1800 and 0600.
B) Give the penicillin at 0800, 1600, and 2400; give the gentamicin [Garamycin] at 1200 and 2400.
C) Give the penicillin at 0600, 1400, and 2200; give the gentamicin [Garamycin] at 0600 and 1800.
D) Give the penicillin every 8 hours; give the gentamicin [Garamycin] simultaneously with two of the penicillin doses.