Respuesta :
The correct answer is D.
For Daniel to act unethically he would mind his own business and continue his own research. The other three options are all ethical and would be the right thing to do in this situation. The unethical decision would be the one that goes against the moral codes of doing research and being a psychologist/scientist. All research must stick to an ethical code of conduct for the safety of the participants and the experimenters, in addition for the institution involved to keep good practice.