Answer:
D. U.S. land was inexpensive and available to buy.
Explanation:
It cannot be A because, I don't think Europeans believed in nativism either. German cities had nothing to do with Europeans and United States in the 1800s. While C. If you haven't forgotten. Freedom of Religion? You can do whichever religion you please and the government cannot promote one religion so therefore, it cannot be C. At that time U.S. was still a new country so their land was so spread out and didn't have enough people to cover it so therefore, they made their land cheap.
That why it is D. U.S. land was inexpensive and available to buy.
