From Management's Point of View,which of the Following Describes an Advantage

From management's point of view,which of the following describes an advantage inherent in a straight salary compensation plan?

A) Selling costs are kept in proportion to sales.
B) Salespeople are less resistant to reassignments of accounts.
C) Salespeople are highly motivated and employee turnover decreases.
D) A straight salary plan increases the work norms within the sales group.
E) Straight salary plans foster the development of highly productive salespeople.