Concept:The civil service is a specific part of the public service, and the key difference lies in its conditions of service.
Explanation:The public service includes all government employees, such as teachers, police, and civil servants.
The civil service refers only to permanent, salaried officials who implement government policies.
These two groups differ mainly in their conditions of service.
Conditions of service include pay scales, working hours, promotions, and benefits.
Civil servants usually have distinct terms of employment compared to other public servants.
Therefore, the difference is not based on educational qualification, political affiliation, or personality and stature.
Answer:C. conditions of service