They are definitely not synonyms, that would mean they mean the same thing wich they definitely do not. They are antonyms.
Answer:
A. This section explains the distinction between the World Wide Web and the Internet, which addresses a misunderstanding many users have.
Explanation:
It is not the answer B because it in no way criticizes the creators, it only provides information. There is no opinion given which means it cannot be D either. The answer C is incorrect as the world wide web is an application and not a computer network system.
You should address the counterargument in the second paragraph.