C and D I think either could work. Moreover D though.
It gives the reader a notice about what the text it is a about. This could be to see if the reader of the text is interested in the text. Sub headings gives the reader a notice about what the reader will find in that part of the text.
Answer: You could make an argument that all of those could be used in a conclusion paragraph; however. if you can only pick one, A seems to be the best answer. If you can pick more than one, you should put A and B at the very least. Hope this helps!
Answer:
D the aunt tells a story with a moral, but the children ignore the lesson
Explanation: