Answer: B They were worried that the revolution would spread across Europe.
Explanation: At that time, Europe was ruled by a handful of very powerful monarchs who had complete control their of nation and after hearing about the monarchy in France overthrown, and their king beheaded, they grew worried for their own fate and feared that the french uprisings would spread to their nations and resolved to try to stop the spread of the revolution.
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During the period of the Cold war the fear of atomic annihilation, had a strong psychological effect in how Americans dealt with the treat. Many Americans built bomb shelters in the backyards, they practiced attack exercises in schools and public areas.
Can't do anything else unless you declare your faith first. It's like riding a bike without sitting in it first