单选题 According to the law of diminishing returns, doubling the number of salespeople for a firm will most likely result in:

A. doubling the total sales of the firm.
B. more than doubling the total sales of the firm as a result of economies of scale.
C. increasing the total sales of the firm and reducing the average sales per salesperson.

【正确答案】 C

【答案解析】The law of diminishing returns states that as more of a resource is added to a production process, holding other resource use constant, increases in output will eventually decrease. Therefore, as more salespeople are added they will generate more sales at a decreasing rate. Total sales will increase and the average sales per salesperson will decrease.