The remaining amount, in milligrams, of a certain medication in a patient's bloodstream hours after administration is given by the function , where . Which of the following is the best interpretation of in this context?
After 3 hours, approximately 84.375 milligrams of the medication remain in the bloodstream.
After 84.375 hours, approximately 3 milligrams of the medication remain in the bloodstream.
The medication is administered 3 times, resulting in 84.375 milligrams.
The initial dose of the medication was 84.375 milligrams, and 3 milligrams remain.