If you are alone with a child who has stopped breathing, you should:

CPR stands for cardiopulmonary resuscitation. It is a lifesaving procedure that is done when a child's breathing or heartbeat has stopped. This may happen after drowning, suffocation, choking, or an injury. CPR involves:
Rescue breathing, which provides oxygen to a child's lungsChest compressions, which keep the child's blood circulating

You should first call 911, and then try to get her/him breathing by doing CPR
Hope this helps :D

I’m going to guess these are the choices: a) recreational skiing developed in the mid-19th century b) it was originally invented as a way of getting from place to place in snowy regions c) downhill skiing is currently the only common form of the sport d) it mostly evolved from snowshoeing- if that’s the cases then the answer would be c) downhill skiing is currently the only common form of the sport