A is the answer. I believe, although I’m not 100% sure
Disagree because the could be harmful and they aren’t natural
force has many different definition, here are some examples.
1) Force is a push or pull
2) Force is the capacity to do work or cause physical change
3) Force= Mass times acceleration (F = ma)
<span>4) A force is that which changes or tends to change the state of rest or motion of a body</span>