Final answer:
The essential detail for a summary is C. Mrs. Quraishi talks to Kyleesha about the quality of her report, as it focuses on the central event and lesson about the importance of planning and managing assignments.
Step-by-step explanation:
In creating a summary, we should focus on the main points that reflect the key events and messages of the text without including minor details. The correct answer to which detail should be included in a summary of the provided passage is C. Mrs. Quraishi talks to Kyleesha about the quality of her report. This is an important detail because it highlights the main event concerning Kyleesha's situation with her science report and also conveys the lesson Mrs. Quraishi is imparting about the importance of using a planner. Tossing a backpack and playing basketball are not central to the story's main idea, and while working in lab groups is a common activity, it doesn't pertain to the specific situation being highlighted about Kyleesha and her report.