I think the answer "In practice, these provisions, including white primaries"
The United States, Great Britain, France and Japan.
Answer: France
Explanation: Louisiana and much of the UA at the time was purchased in what was called the Louisiana Contract by Thomas a Jefferson from a France. I believe the price was 3 million dollars.
The correct answer is D) nothing specific
At that time, the US focused on other things such as repairing Europe and ensuring that it's economy was the strongest in the world. It was not so important for the US that Mao Zedong took over China.