How did the United States entry into World War I change the culture and international political policies of the country?

I don't know if this is what you mean but-

Explanation:

The USA did not contribute to WWI. This introduced political isolationism, as they completely isolated themselves during WWI. They realized they did not want to work with countries such as France, or the UK, as they wanted different things.

c.

worked constantly and gave many sincere speeches about the importance of independence