The correct answer is: The detail about the raccoon's wanting to catch the crawfish should be included, because it is related to an important event in the story.
Explanation:
The detail which should be included in a summary is the detail about the raccoon who wanted to catch the crawfish. This detail should be included in the story because the raccoon started all the action by spying a crawfish and making a plan to catch him. This fact caused many actions which contributed to the further development of the story.
