GRE Text Completion: Manhatton-GRE填空Manhatton - Q566C8PE19YA841F=

Strange to think that for the majority of the 1950's, the ____________ of nuclear holocaust was a daily part of people's lives, so much so that elementary school students ran drills in which they had to dive under their desks and curl up into a ball. A. specter B. annihilation C. brutality D. detonation E. arms race