3. How does paragraph 11 contribute to the development of the main ideas of the passage? A. It shows that, although the Liberty ships were convenient and effective for carrying cargo, they were not robust enough to withstand attacks from the Germans. B. It demonstrates that Americans contributions to the war effort in the name of global security outlasted the war itself. C. It emphasizes that the formation of NATO followed closely on the heels of World War II. D. It underscores the reality that global monitoring on the part of the United States did not cease to be necessary after the end of the war.