Answer:
b.ethnocentrism.
Step-by-step explanation:
Ethnocentrism is a term that is being determined as an individual's belief that the customs, norms, traditions, values, and ideology of his or her subculture or culture are considered as superior to that of the characters of some other cultural setting. In other words, it is described as a process through which a person feels that his or her culture is the correct way of 'living'. Ethnocentrism was proposed by William Graham Sumner during 1906.
As per the question, the correct answer is ethnocentrism.