If you're looking for health and safety training, this organization would be a good place to start as it is the leading provider of health and safety courses, such as cpr.

The American Red Cross is a leading provider of health and safety courses.

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