Why are ballistic stretches considered dangerous?

Ballistic stretching is generally not recommended for everyday people who want to stay in shape or improve flexibility because there is a risk of straining or pulling a muscle. Static stretching stretches muscles more gently without risk of pulling them.

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