The Patient Receiving a Large Intramuscular (IM)dose of Antibiotic Was

The patient receiving a large intramuscular (IM) dose of antibiotic was asked to please wait 20 to 30 minutes before checking out.The reason for this request is that:

A) The office staff needs to make sure that the right medicine was administered before the patient leaves.
B) The nurse always forgets to ask the patient about allergies before administering the antibiotic.
C) Antibiotics are a common source of severe allergic reactions within the first few minutes after an injection.
D) The staff wants to make sure that the patient has time to pay for the services delivered that day.