The last one, trust me every other answer here is so totally wrong.
Their buildings were adopted by the U.S.
Answer:Russian citizens, who were starving and poor, became angry at the ruling class who held all of the nation’s wealth.
Russia, now led by Lenin, became the first communist nation in history.
Led by Vladimir Lenin, a group called the Bolshevik Party gained the support of the people and overthrew Russia’s monarchy, killing Czar Nicholas II and his family.
Communism soon spread to many small countries near Russia, and eventually spread to Cuba, China, and Vietnam.
Explanation:
A long telegram was sent by George Kennan to the Department of State. In the telegram, he detailed his views on the Soviet Union and the US policy toward the communist state. He started it off by stating that the Soviet could not foresee a "permanent peaceful coexistence" with the West.