Some Companies Insist That Their Inside Telemarketing Salespeople

Some companies insist that their inside telemarketing salespeople:

A) customize their sales presentation based on a computerized customer-prediction model.
B) collect a lot of precall information about every customer they call with their offers.
C) memorize the entire sales presentation and deliver it word for word.
D) avoid providing information about the features of their products on the phone.
E) all of the above.