The bioavailability of a drug is affected by the A. metabolic rate of the patient. B. gastrointestinal system and absorption rates. C. measurement system in which the medication dosage was calculated.

The bioavailability of a drug is affected by the A. metabolic rate of the patient. B. gastrointestinal system and absorption rates. C. measurement system in which the medication dosage was calculated. D. time of year in which the medication is administered