How did China’s isolation affect its culture? This is on Ancient China.

Isolationism is basically limiting the contacts with other people. ... In that case, isolationism allowed China to defend themselves against the nomadic invaders that, constantly throughout history, have been knocking on their doors (or walls). It hurt because: Zheng He was making such great advances in exploration.

Explanation:

answer; i do believe that the (14th)fourteenth amendment is the correct answer

the answer would be:

b. race