Generally speaking, it would be an association with "the European Union" that offers the brightest immediate future for many African countries, since this is a union of many countries with economic and moral interests in Africa, as opposed to just one.
The city with the most thriving African American communities is new York
The correct answer is A. To guarantee American commerce with China. The us sent troops to participate in the multinational force that fought the Boxer Rebellion in 1900 to support U.S. trade goals by helping to preserve China as a nation. The Open Door Policy is a term in foreign affairs initially used for the United States policy in the late 19th century and the early 20th century that allowed for a system of trade in China open to all countries. Recently it is used to open up China to foreign businesses that wanted to invest in the country.
The correct answer is the US senate, and president Wilson pushed in favour of the two. A possible reason for senate's rejection was a conflict with the president. Another possible reason was that the senators feared this would threaten the independence of the US.