The correct answer is "Charlemagne crowned Holy Roman emperor, 800 CE."
The event that belongs in place C on the timeline is "Charlemagne crowned Holy Roman emperor, 800 CE."
In one of the most important events of that time, the pope Leo III crowned Charlemagne as the New Emperor of the Roman Empire. The exact date, December 25, 800 CE. Charlemagne was the King of the Frankish and was the one who could exert the leadership and influence to calm down the situation in Rome. One of the first things Charlemagne did was to improve the education conditions in the Empire.
It caused them to be slaves
It was "Karl Marx" who envisioned a classless society, with common people in charge of their destiny, since this was the basis of communism, which came to fruition most famously in the Soviet Union.
4. What did the Germans have that most other inmigrants did not? How did they use this to their advantage?
Germans were skilled farmers and during the 18th and 19th century, with the Industrial Revolution changing the economy of many Germany states from agricultural to manufacturing industries, they emigrated to the United States. Hearing of the North America's farmland, they brought their farmer skills mostly to the midwest helping to make prosper the local agriculture.
Germans used their knowledges to prosper in a foreing land and many of them became businessmen and buildt beer breweries alongside with agriculture.