To Get a Profit-Maximizing Firm in a Perfectly Competitive Labor

Multiple Choice

To get a profit-maximizing firm in a perfectly competitive labor market to hire another worker, the firm will need to

A) lower the wage rate paid to that last worker hired and also to all previous workers hired.
B) raise the wage rate paid to that last worker hired and also to all previous workers hired.
C) lower the wage rate paid to the last worker hired only.
D) raise the wage rate paid to the last worker hired only.