Answer: Civil service, the body of government officials who are employed in civil occupations that are neither political nor judicial. In most countries the term refers to employees selected and promoted on the basis of a merit and seniority system, which may include examinations.
Explanation:
The answer to the blank is none of the above as the answer to the blank is Upward Social Mobility.
Social mobility refers to the individuals or groups movement in social position and upward social mobility is the ability to move up in social class and the opposite is the downward mobility. The movement or the social mobility is based on education, occupation, wealth and other social variable.
The answer is d. it rotates in the opposite direction to most other planets.
