After reading the article "Encountering the Other: The Challenge for the 21st Century," we can say that the following is the best definition for "the Other":
A. people who are unfamiliar to a person or group
The article is about how globalization makes the world smaller, more accessible, and how that brings us into contact with different cultures and peoples.
The term "the Other" in the title refers to those who are unfamiliar to us, the people who have different cultures, world views, appearances, etc.
With that in mind, we can choose letter A as the best option when defining "the Other".
Learn more about "Encountering the Other: The Challenge for the 21st Century" here:
https://brainly.com/question/26118398