You didn't add the choices, but I've had this question before the answer is that nearly all of the male immigrants were male, so children came from unions with Native Americans.
A) Northeast, South, West
Answer:
The platform also called for a graduated income tax, direct election of Senators, a shorter workweek, restrictions on immigration to the United States, and public ownership of railroads and communication lines. The Populists appealed most strongly to voters in the South, the Great Plains, and the Rocky Mountains.
Explanation:
How about the Boston Tea Party? I don't know much about it but I heard it's a good event to write about :)
