C.scientific theory that would be your answer cause I just did this question
The following that is a characteristic that could be applied to both living and nonliving things can contain mostly carbon, hydrogen, oxygen, and nitrogen.
The ability of an organism to change internally or externally in relation to changes in the environment is called adaptation.
Http://www.healthline.com/health-slideshow/home-remedies-for-head-lice#1
This may help :)
