If a Sales Representative from a Pharmaceutical Company Calls and Asks

If a sales representative from a pharmaceutical company calls and asks to speak to the physician, what would be the best response by the medical assistant?

A) To put the call through to the physician's extension
B) To provide information about the next available appointment time for a pharmaceutical representative to meet with the physician
C) To offer to take a message for the physician
D) To say that the caller will have to come to the office and see if the physician has time to speak with him or her