Answer:
The answer is: <em>D. Investigative journalists whose work sought to bring about social reform and relief for the lower classes.</em>
Explanation:
According to the Cambridge Dictionary, <em>muckraker</em> is a person, especially one in a news organization, who tries to find out unpleasant information about people or organizations in order to make it public.
Upton Sinclair was an American novelist, essayist, playwright, and short-story writer, who wrote "The Jungle" a 1906 novel . It was written to portray the harsh conditions and exploited lives of immigrants in the United States in Chicago and similar industrialized cities.
True; Seizing on what Jefferson later called "a fugitive occurrence," Monroe and Livingston immediately entered into negotiations and on April 30 reached an agreement that exceeded their authority — the purchase of the Louisiana territory, including New Orleans, for $15 million.
The nobles’ place in society was essentially to function as middle-men between the peasants and the royal family. Nobles provided work, land, and protection to the peasants while providing funding, supplies, and military service to the king.
It didn't cause alarm it cause caous because all the military people were running so much people were afraid that something dangerous was going on