What is the main theme of the selection? O Breaking the rules usually leads to a negative outcome.
O People often have a strong desire to explore the unknown.
O People tend to forget things when they are in a hurry.
O Going to a new location can be an exciting experience.

A

Explanation:

I hope this helps!

the following key ideas correctly express the key sentence.

restate key idea: most people can learn to swim in ten short lessons.

restate key idea: the majority of water-accident victims require mouth-to-mouth breathing.

restate key idea: an empty, tightly closed gallon jug will support a tired swimmer.  

restate key idea: first aid is to prevent accidents as well as assist in rescue.

explanation: the key idea needs to have the same topic as the key sentence (drowning and safety).