All the Following Statements Regarding Compensation for Sales Personnel Are

All the following statements regarding compensation for sales personnel are true except:

A) There are many types of compensation in sales - base salary,bonus etc.
B) Senior sales representatives represent the highest paid category of sales personnel.
C) The amount earned by salespeople is clearly tied to their selling skills and amount of effort put forth.
D) Intermediate salespeople earn only slightly more than entry level salespeople.
E) Salespeople earn higher income than most other workers in the business community.