I believe this would be the Working Phase in the nurse and patient relationship.
Answer:
You should not sell unprescribed medication to people is illegal because they could be considered drugs. It is unsafe because they do not need it, or if they did they could have their doctor prescribe it to them and they you would not need to sell it to them.
I think it is.... subjective ? idk i am not quite sure
Answer:
Any iron or metal cleaning