An intravenous (IV) antibiotic is prescribed for a client with a postoperative infection. The medication is to be administered in 4 divided doses. Which schedule is best for administering this prescription?

A. Timing with meals is inappropriate for IV antibiotics because it does not maintain consistent blood levels. B. Spacing doses every 6 hours around the clock maintains therapeutic levels and is standard for a 4-times-daily IV antibiotic. C. This schedule leaves a long gap overnight, risking subtherapeutic levels and decreased effectiveness. D. Limiting doses to waking hours creates uneven intervals, which may compromise treatment efficacy.