In Sales Management the Concern Is That Salespeople Are (Or

In sales management the concern is that salespeople are (or can be) sufficiently motivated to reach the sales objectives of the firm. Which of the following is (are) reasons why salespeople need stimulation?

A) Field salespeople are continually going from the exhilaration of making a sale to the depression associated with being turned down.
B) Salespeople tend to spend long hours on the road away from direct supervision and support.
C) To maintain a salesperson's high level of enthusiasm and conviction that a product or service is best for the customer.
D) all of the above.
E) none of the above.