Answer:
Essentially, it measures the economic performance of a country. It's a measure of the final market value of goods and services for a country during a specific time.
Explanation:
During 1989 and 1990, the Berlin Wall came down, borders opened, and free elections ousted Communist regimes everywhere in eastern Europe. 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.
It should be the third choice
Because they created large powerful armies to enforce the law.