This question examines the ability of candidates to extract information, understand and analyze problems. The hegemony between the United States and the Soviet Union is an important part of world history after World War II. It is a difficult problem. The breakthrough of this topic focuses on the understanding of "new borderism" Option A embodies the characteristics of Roosevelt's New Deal, option C only sees the phenomenon of the problem, but does not see its essential purpose, and option D does not reflect the meaning of the problem. The "new borderism" put forward by Kennedy is the purpose of American global hegemonic policy after World War II. So choose B.