Answer:
The correct answer is B) the notion that communism could spread to neighboring states through close contact
Explanation:
The United States genurily beleived that the popularity of Communism in one country, will quickly spread to another country thanks to the support of the Soviety Union.
Also described as the Domineo effect, that is one country fell to communsim, gradually others will follow.
At that time, a communist political system automatically meant that the country was under the influence of Soviet Union.
To counter this influence, the United States funded and backed many governments, toppled democractic regimes and was involved in many illegal wars throughout the world.
It is generally believed that the United States came out the strongest and won the cold war.