Paper Pushers Inc. hires workers in a competitive labor market. Apart from labor, the company has no other variable inputs. The company's hourly output varies with the number of workers hired, as shown in the table. WorkersPages/hour0014027531054125514061507155 As Paper Pushers Inc. hires more workers each hour, the marginal product of labor ________.

A. decreases
B. decreases and then increases
C. increases
D. remains constant

Answer: A