Which of the Following Statements About Personal Selling Is True

Which of the following statements about personal selling is true?

A) Salespeople should be on 100 percent commission.
B) When salespeople are engaged in developing lists of potential customers,they are pre-testing.
C) Retail selling and industrial selling require the same type of training.
D) Salespeople usually avoid answering customer objections and instead focus on the positive aspects of the product or service.
E) Salespeople are expected to help prospects identify and solve problems.