The US government's decision to develop a hydrogen bomb, first tested in 1952, committed the United States to an ever-escalating arms race with the Soviet Union. The arms race led many Americans to fear that nuclear war could happen at any time, and the US government urged citizens to prepare to survive an atomic bomb.
Answer:
American cities decline / hollowed out into post-industrial wastelands. Industries fled overseas as other corporations sought lower wage costs.
perdon no se espero que no te enojes espero que sirva mi consuelo
C. im not for sure but hope it helps