Humans tend to build things in the environment that shouldn't be there at all because it will affect the living things like animals and plants. Another thing that human causes is pollution, usually when they work in power plants they don't dispose the chemicals property and that can be dangerous to the water and the plants.
The answer should be A because they are the only one you could actually do it to. You can’t hurt a baby or a pregnant women and you can’t wrap your arms away a fat person.
