Using a Compensating Differential Wage Theory,some Individuals Earn More Than

Using a compensating differential wage theory,some individuals earn more than others because workers

A) who earn more are more productive.
B) need to earn more to be willing to accept dangerous working conditions.
C) need to earn more to be willing to accept a safe indoor job.
D) who are more educated and better trained are able to earn more than the equilibrium wage.
E) who earn more tend to be concentrated in a single occupation.