The Human Resources Department of a Large Employer Provides a First-Level

The human resources department of a large employer provides a first-level review of applications for the hiring of thirty new employees. The HR department forwards to the hiring committee only the applications of those who have bachelor's degrees. In this case, the investment in human capital made to obtain a degree is

A) not a factor in the hiring decision.
B) a signaling device to indicate the applicant has minimum acceptable skills.
C) has direct costs paid by the applicant and opportunity costs paid by the firm.
D) the incentive the firm has given for on-the-job training.