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.
Answer: The second wave of immigration from 1820 to 1890 was a period where America went from being mainly a rural and agricultural society to the beginnings of an industrial society.
Explanation:
I would rule out B and C because they didn't do much good they killed people who didn't change religion. I would go with D because they forced people to change to their religion.
To find a direct route to China
