问题
单项选择题
Which of the following will cause an increase in the demand for labor（）
A. An increase in the labor supply.
B. A decrease in labor productivity.
C. An increase in the demand for the final good or service.
答案
参考答案：C
解析：
The demand for labor is a derived demand. When the demand for the final good or service increases, the price of that final good or service increases. That increase in price will lead to the firm employing more of the resources used in production at each resource price, including labor.