Two workers have the same education and years of experience and were hired on the same day, yet one worker is paid more than the other. Which reason for this difference is consistent with the marginal productivity theory of income distribution? On the day they were hired, one of the workers was the third person hired, and the other worker was the fifth person hired. One worker has become an expert at their position while the other worker does an adequate job. One worker is a White male and the other worker is an African-American woman. One of the workers knows the manager better than the other worker does