Answer: B. García Márquez has created a world of his own around the imaginary town of Macondo.
This is the sentence that best supports this statement. In the passage, the author describes how Garcia Marquez often used the same chief characters and minor persons in different stories, and how these engaged in the same elaborate situations. The best supporting sentence is the one that describes the universe in which these characters lived. Therefore, it is useful to talk about Macondo, and about the fact that the author developed an imaginary world of his own in which the characters could exist.