When a Pharmacy Calls the Dental Office Regarding a Prescription,the

When a pharmacy calls the dental office regarding a prescription,the role of the dental assistant is to:

A) authorize prescriptions for narcotics for extreme pain over the phone.
B) notify the dentist immediately.
C) relay information between the pharmacist and dentist, and not interrupt either of them.
D) tell the pharmacist to call back again later if the dentist is busy with a patient.