This is the answer to the question
Answer:
B. Soviet leader Mikhail Gorbachev attempted to expand his power and suppress reform.
Explanation:
Mikhail Gorbachev decided to allow elections and create a presidency. It slowly turned into democracy and so the communist control dissolved, contributing to the collapse of the Soviet Union.
Barbarian attacks caused the collapse of the Western Roman Empire.
That focused on sugar cane pretty sure
We were relieved by jobs, war, and other countries trade.