Answer:
I would have to say D. all of the above
Step-by-step explanation:
Using a calendar and/or a planner keeps you well organized and helps prevent forgetting about homework. Keeping your locker clean and neat makes it easier to find the things you need for class, and keeps you well organized as well. Organizing your notebook makes it easier to find the notebook you need for class and it's just a reasonable thing to do to keep you organized
Hope this helps! Have a great day Peter!!