Answer:
The Red Army's Capture of Berlin
Explanation:
Even though the Battle of Stalingrad was important event that led to the end of World War II, the event that lead most directly to the end of World War II in Europe was the Red Army's capture of Berlin.
B. Progressivism
A political movement that crossed party lines which believed that industrialism and urbanization had created many social problems and that governments should take a more active role in dealing with these problems.