题目选项分析

The embedded narrative structure of the Thousand and One Arabian Nights, in which many of the individual tales are stories within stories, nested as many as four layers deep, makes mythologists suspect that it was not all written by the same author.

The embedded narrative structure of the Thousand and One Arabian Nights, in which many of the individual tales are stories within stories, nested as many as four layers deep, makes mythologists suspect that they were all not written by the same author.