B George F.Kennan. You're welcome!
Answer:
the answer is the last one
In my opinion, it was because the agricultural revolution mainly.
The answer is 'B'.
Perestroika was a Soviet policy to make the economy more open to foreign competition and individual citizens.
Mikhail Gorbachev attempted to reconstruct the economic system of the Communist Party.
Example: Ending price controls
Glasnost refers to the government becoming more open.
The Congressional and Presidential Reconstruction Plans had differences as regards the intensity of amnisty and leniency they managed. President Lincoln believed that he had the power and the obligation to carry on the Reconstruction. However, the Republican Members of the Congress did not agree. They said that it was the Congress the one with the power to reconstruct the south.
