When Receiving Business-Related Phone Calls

Multiple Choice

When receiving business-related phone calls,

A) you should use frequent verbal responses (such as, "I see") to show that you are listening.
B) it is impolite to say things such as, "I understand" while the other person is speaking.
C) it is perfectly acceptable to put the caller on hold without explanation.
D) your primary goal should be to get off of the phone (and back to work) as quickly as possible.
E) do none of the above.