What major changes occurred during the postclassical era?

The Post-Classical Era was an era filled with various changes. This include the various dynasties in China including the Sui, Tang and Song. There was also the spread of Buddhism from India through the silk roads into China. Technological changes include the invention of gun powder which transformed warfare

the answers is b.   environments.

either b) they were often feared and despised by other native cultures. or

c) their obsession allowed them to coexist with many other native cultures because of their peaceful nature.