The answer is A. Ethnic groups
The United States first began developing nuclear weapons in 1939, during World War II, under the order of President Franklin Roosevelt. Motivation was the fear that US was engaged in a race with Nazi Germany to develop nuclear weapon. This project is best known as Manhattan Project.
Expensive people living in American
Answer:
So the citizens of the government are able to petition for change.
Explanation:
Without the ability to petition the government for change, many things in modern America would be different, for example, women's rights would still be little to none compared to men's.
