One of the primary cause of the downfall of the Soviet Union is that Mikhail Gorbachev provided the Soviets different economic and political options. Therefore, the answer is letter A. He failed to strictly implement the policies of the domestic economy, which is the perestroika, and glasnost, which is the political reform.
The FrenchRevolution was influenced by the enlightenment ideals of "natural law" and freedom. These ideals were also shown in the Declaration of the Rights of Man.
