A Principal Consequence of Limits on Salaries and Promotions in the Civil

A principal consequence of limits on salaries and promotions in the civil service is that:

A) it is difficult to reward the best employees
B) civil service employees exhibit a lack of effort
C) good employees avoid public service and instead work for the private sector
D) government jobs pay less than private-sector jobs over the long run
E) civil service employees are forced to work overtime to make more money