What would be the best way to respond to an unlawful interview question in order to promote a successful conclusion to the interview?

Good question. it depends on the nature of the question. since there is a particular way to deal with every type of uncomfortable/unlawful question. my advice to promote a successful conclusion to the interview would be to not become aggressive/defensive when asked something either personal or unlawful. to confront your interviewer will likely steer the conversation and the mood to a place that'll focus entirely on their violation of your rights. you don't want that. instead, do your best to prove your qualifications and professionalism. focus on letting them know how well-suited you are for the job, and convince them that they need you. at the moment of being asked, you'll probably not know what to say. try to make it seem like you're answering their question by talking about something related to what was asked, so as to direct the question away from you. i found this article, maybe it'll you out: