The Louisiana Purchase was actually when the USA bought present-day Louisiana from France; it added French influences into our country, as well as more land.
Answer: C) the new coins lost value because of inflation
The treaty was known as the Treaty of Paris.
Confucianism is a Chinese system of beliefs (you could argue it's a religion, but it's more a system of beliefs and philosophy) based on respecting the elders and up-keeping the hierarchical structure of the society.
The correct answer is D!