Answer is
A. Reason
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America and the Soviet Union didn't trust each other and so stockpiled massive nuclear weapons
Are you asking what it is?
Answer:During 1989 and 1990, the Berlin Wall came down, borders opened, and free elections ousted Communist regimes everywhere in eastern Europe.
Explanation: In late 1991 the Soviet Union itself dissolved into its component republics. With stunning speed, the Iron Curtain was lifted and the Cold War came to an end.
La Revolución Industrial fue la transición a nuevos procesos de fabricación en Europa y los Estados Unidos, en el período de aproximadamente 1760 a algún momento entre 1820 y 1840.