Circuit learning is defined as

To learn a new word, we connect that word to things and ideas we already understand. We use words we already know to describe the meaning of the new word. ... The ONLY way to learn new information is to make a connection… Connecting new information to something you already understand. This is the Learning Circuit

Explanation:

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.

the answer is states.