Which of the Following Is a Benefit of Civil Service

Which of the following is a benefit of civil service employment requirements?

A) It creates clear conditions under which we can reduce the size of the federal government by removing entrenched employees.
B) It makes it easy to remove poor performers from their jobs.
C) It means that the best and brightest in their fields are more likely to work for the government instead of the private sector.
D) It makes it difficult for elected officials to hire and fire employees for political purposes.
E) Civil service employees make more money than if they worked in the private sector.