D.) Washed your hands first.
It is D.) because when you wash your hands first you're getting all the germs, dirt, or whatever is on your hands, off. Then you go back and put hand sanitizer to then in a sense "clean" it more. Plus who knows what is on that paper towel you just dried your hands with.
Anything except lung cancer if that makes sense, I don't know what your options are
Hope that helps feel free to ask me more questions.:)
Basic functions is to carry genetic info.
