Which of the Following Statements About Sales Training Is True

Which of the following statements about sales training is true?

A) Sales training ends when the salesperson actually begins the selling job.
B) An understanding of sales training is only gained through the company's formal training program.
C) Sales training is irrelevant once a salesperson receives the designation of "master sales representative."
D) Sales knowledge gained from sales training benefits not only the salesperson and the company but also the customer.
E) Periodic sales training is intended to keep salespeople humble and aware of their shortcomings.