A) because the definition of popular sovereignty is a doctrine in which the government is created by and subject to the will of the people.
C.) trial by jury of peers
Number one: You're answer is D. The government controlled everything, due to it being Communist.
Number two: The answer is C. When oil lost it's price dramatically, the USSR's economy fell and it could no longer control the Middle East as well as before
Number Three: The answer is A. Socialist republic Russia today isn't officially a communist country. But there are many communist factors, and traits that it is using right now.
Because most parliamentarians were Protestant in faith.