You must walk in the halls, not run, you can get seriously hurt. You can trip and scar up your knees, you can tumble and fall, and hit your behind. hope this helps :)
I believe it's persuade. You want to persuade schools to offer better food. B is wrong because you are not entertaining anyone. Inform is wrong because you would just be stating facts. A is wrong because you are not telling someone to do something. Hope this helps! ;)
