It should be noted that the author introduced the main idea as B. The author explains the purposes of the traditions across cultures and then gives specific examples.
It should be noted that a central idea is the main idea simply means the perspective of the author regarding that particular topic.
In this case, the author explains the purposes of the traditions across cultures and then gives specific examples. He compared the Jewish faith, their ceremonies etc.
Learn more about central ideas on:
https://brainly.com/question/2684713