If a Company's Salespeople Are Ranked Based on Performance from the Top

Multiple Choice

If a company's salespeople are ranked based on performance from the top performers down,which group which achieve the greatest return per dollar invested in sales training?

A) Top third of the salespeople.
B) Middle third of the salespeople.
C) Bottom third of salespeople.
D) There are no differences in what each group will return.
E) The top half of the salespeople.