Political and Economic Reforms Made by Mikhail Gorbachev in the Soviet

Political and economic reforms made by Mikhail Gorbachev in the Soviet Union during the late 1980s led to __________.

A) the dissolution of the Soviet Union and the end of communist rule throughout Eastern Europe
B) the narrowing of the gap between the world's rich and poor
C) greater solidarity and cooperation among the various ethnic groups that lived within the Soviet Union and Eastern Europe
D) peaceful relations among the West, the Soviet Union, and the Middle East