An employee of a small company has duties that include answering phones and selling. A customer calls with a question that the employee cannot answer. What should the employee do?

A. Tell the customer he doesn't know the answer to the question and politely end the call.
B. Give the customer as much of an answer as possible based on the knowledge he has.
C. Put the customer on hold and search for the answer quickly while the customer holds.
D. Offer the customer a choice of holding while he finds the answer or receiving a call-back.