I believe fused sentence would be the answer. Because “the mayor...” and “the local classic car auction...” could be two separate stand alone sentences but they were incorrectly fused together by a comma.
Answer:
The aunt tells a story with a moral, but the children ignore the lesson.
Explanation:
From the text we know that the children already acknowledge the poor storytelling abilities of their aunt and thus do not expect much from the story.
Despite the boring nature of the story, the aunt does try to lacklusterly include a moral, but the moral is completely ignored by the children who notice instead the many faults of the story.
The negro artist and the racial mountain was written in response to "The Negro Art Hokum" written by George S. Schyler.