D: The body of government officials (except elected officials and judges) selected to help run the government.
Explanation:
Civil servants are those persons who are employed by the government to run the programs of the city, state or country. The United States Department of State describes what work as a civil service professional for the State Department is like: "Working in Washington, D.C., or other cities throughout the United States, you’ll work on everything from improving trade opportunities for U.S. businesses, to helping American couples adopt children from overseas, to monitoring human rights issues." On a more local level, civil service workers might be those employed by your local branch of the US Postal Service, or the workers at your local Department of Motor Vehicles office, etc.
Fresco is a technique in art in which paint is applied to plaster. There are a number of variations on the technique, but buon fresco or true fresco refers to applying paint to wet plaster specifically, as opposed to plaster that has fully dried.