Suppose the Value of Marginal Product Is $20 Per Hour

Suppose the value of marginal product is $20 per hour regardless of race.An employer who faces an hourly wage of $14 per black worker and $17 per white worker decides to hire all white workers.What kind of discrimination is this?

A) Employee discrimination.
B) Consumer discrimination.
C) Employer discrimination.
D) Statistical discrimination.
E) None of the above.