I think my ethical obligations, inare case fofllows: In a siftuation where one team member doesn’t contribute into the group work is, toI will let him, or her, know at first, and, depending on his, or her, response, then inform to the instructor about it. If someone is plagiarizing in the group, all group members are the stakeholders, in that case. In this situation, the first option, would be to ask the person to redo this/her work, and ask them to properly cite the sources, so that plagiarism can be avoided. Secondly, re-read, or check the work, that he/she submitted, in order to avoid the plagiarism. Thirdly, seek the instructor's help, if such a situation arises. EThe ethical course of action for this kind of situation, is to warn him, or her, for the first time, and if he, or she, repeats the same, then reporting the matter to the academic inauteghority. This is the only ethical course of action, that I can think of.