Stopping the spread of communism was the top priority outlined in "<span>the Truman doctrine," since Truman was one of the US presidents who was in office during the Cold War and wanted to "contain" communism. </span>
Answer:
I think it's A, sorry if I'm wrong.
Explanation:
Civil War killed off slavery and declined the southern economy it also acted as a catalyst to make America into a complex industrial society of capital, technology, national organizations, and large corporations.
