You work with the National Park Service, and you are responsible for overseeing a campground. Based on this document given to park guests, what should you ensure during the quiet hours at your campground?
A.
Ensure any campers with pets keep their pets restrained at the tent.
B.
Ensure any campers reading books have sufficient light at night.
C.
Ensure that all campers have cleaned up the area around their tents.
D.
Ensure that all campers are back at the campground before dark.
E.
Ensure any campers listening to music use personal headphones.