In the 15th century china stopped trading with other areas of the world and became isolated. Which of the demonstrates that this action was the result of china's fear of cultural change?

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.

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.

the first one is d and the second a

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.