I believe the answer is: C. diplomats and ambassadors
Diplomats and ambassadors are deployed to live in foreign country as their country's representation in that foreign land. They played a huge role in negotiating political and trading agreements with foreign countries and also had the role in protecting the rights of citizens that live in foreign countries.
The main reason why the Committee of Public Safety considered monopolies to be such a serious crime is because monopolies greatly reduced competition with greatly increased the prices of products, which led to less consumer choice and lower GDP for the nation.
In around the 1880s, the Jim Crow laws were passed. The Jim Crow laws are to create segregation between black and white people, because they didn't believe African people had the right to go to a good school around other races.
By the mid-1800s The Mason-Dixon Line was the term to describe the rough divide between free and slave states, correct me if I'm wrong please, thank you