Answer:
The wanted to jump into the water but the owner wouldn't allow it
I don't really understand what u r asking but centeral idea is main idea if that's what u r asking...
An underlying message about life, so basically the overall lesson the author wants the audience to know.
I believe it was the Nurse.
✡ If we have 3 boxes and 9 classes, you divide ✡

✡Therefore 3 classes can get a box. ✡