Answer:a
Explanation: The civil service is a collective term for a sector of government composed mainly of career bureaucrats hired on professional merit rather than appointed or elected, whose institutional tenure typically survives transitions of political leadership. A civil servant or public servant is a person so employed in the public sector employed for a government department or agency. A civil servant or public servant's first priority is to represent the interests of citizens.Civil service is performed by a civil servant, a bureaucrat hired by the country's government who works for the public sector; conversely, public service is performed by a public servant, a person appointed by a member of the government to serve the population and perform public duties. In the civil service system ,managing a bureaucracy in which individuals are selected for employment in the government on the basis of either competitive examinations or special qualifications, such as professional training.