They are most mainly consists of "Keratin"
So, option B is your answer.
Hope this helps!
If this really wouldn't be my scene, then the main thing that I would do, when seeing that the people are taking some sort of drug would be to list the five decision-making steps and then explain these five steps to my friend and explain to him why I wouldn't be doing it.
D I think sorry if I’m wrong
I think the answer is it prepares your body for necessary action because I learned something like anxiety and how it help you take action last year. I hope this helps you.
"After she is done with the chicken, she takes a clean cutting board to chop vegetables."
Not cutting the meat on the same cutting board is necessary to not spread salmonella.