You are a collage sophomore, mind your own business as your friend and you prepare a magazine story on on digital advertising, and you get this idea to run advertisements in educational videos at doctor's offices.

• A. mind your own business as your friend and you prepare
• B. mind your own business as you and your friend prepares
• C. minding your own business as you and a friend prepare
• D. minding your own business as you and your friend prepares