In which conflict was containment successful?

It was during the Cold War where the U.S. used this approach to prevent the spread of Communist influence in Europe and Asia.  It made use of major policy changes and easing of political tensions to prevent conflict.  Other approaches used under containment were isolationism where the United States limited its involvement in world affairs.

president franklin roosevelt supported the tva as part of his first new deal measures approved by congress in 1933. this new agency was designed to control floods, produce electric power, and improve the lives of people living in the tennessee valley. the tva accomplished many of these goals despite problems.

d. it spread christianity. i just took the test and got it right.