C. They had nowhere to go
Many slaves wanted to run away but they had nowhere to go.
Answer:
They got the right to vote and they stopped segregation
Explanation:
Albeit this is a basic answer, World War Two was a major catalyst to an increased focus on internationalism. In addition, financial and political interests (most notably for political interests is the Cold War) are both legitimate reasons to why the United States of America has remained as a major part of international affairs.