Experienced Salespeople - Either in Our Firm or Recently Hired

Multiple Choice

Experienced salespeople - either in our firm or recently hired from a competitor - need some training because:

A) Our sales and marketing goals may change over a period of time.
B) We develop new products that need explanation.
C) Our policies may be different from those of our competitors,or our own people may have picked up some bad habits.
D) All of these are reasons why experienced reps may need some training.
E) Only two of A-B-C are correct.