Answer: D
Explanation:
The Immigration Act of 1924 limited the number of immigrants allowed entry into the United States through a national origins quota. The quota provided immigration visas to two percent of the total number of people of each nationality in the United States as of the 1890 national census. :)
It changed when some of them entered the armed forces as medics or nurses. But the African Americans changed when Americans saw how much they wanted to fight for a country that didn't give them their freedom.
What was the result of the sinking of the USS Maine? What motivation did the U.S. government have in the sinking of the USS Maine? In a conspiracy theory, what is a threshold of facts that are needed in order to properly assess whether something is factual or conspiracy, like the sinking of the USS Maine?
Florida from Spain & part of the Oregon territory from Britain
D. Invented gunpowder for weaponry.
It's the only one that makes sense in my opinion. Sorry if it is incorrect