If it is business ethics, and involves like business law or something like that, it can be easy.
Talk about the subject at hand, whatever the discussion is about. Involve either your opinion or the answer to the question. If you can expand on something someone else said, do it. Make a reference to the text where this subject is discussed, complete with cited reference at the bottom of your response. This way, even if your answer aint all that long and complicated, it still looks official. Include, if you can, a link to a reputable website that backs up your point. Also give the citation at the bottom with link. Include a picture or graph from the website, again it makes your answer look hella official. Good website would prolly be an .edu or .org or .net or something.
Good luck!
