The available options are:
A. China took this action to control all trade along the Silk Road.
B. China took this action to encourage its citizens to fight again Mongol invaders.
C. China took this action at the demand of Confucian scholars who tired of barbarian contact.
D. China took this action to eliminate the migration of Chinese people to other parts of the world.
Answer:
China took this action at the demand of Confucian scholars who tired of barbarian contact
Explanation:
What demonstrates that china stopped trading with other areas of the world and became isolated due to fear of cultural change is that "China took this action at the demand of Confucian scholars who tired of barbarian contact".
During this period, the Chinese Scholars felt that the people of their outside regions were uncultured and barbaric hence they must stay away from them so they won't affect their unique way of life.
 
        
             
        
        
        
A congress is the national legislative body of the country. It has a power to fluctuate the value of taxes and even declare war from the other countries. In directing or distributing it power to the House Representative and the Senate, the Congress give them the power of that the former affects its power in the entire country and would make a bill that is pass through the senate and the latter would be the one to approve those bills or laws
        
             
        
        
        
Answer: D. The right lane
        
             
        
        
        
Answer:
Rationing
Explanation:
Rationing is a method that is used to distribute a resource in a period of extreme scarcity. Example of rationing would be what the soviet union did during the communism era. 
At that time, the lack of production in that country make foods became extremely hard to get. So the government only allow the citizens to obtain small amount of food in order to ensure that all citizens can have something to eat.