Which type(s) of underwear do you usually wear ? You can reply in comments, or via private message if you prefer :) The picture doesn't foresee the possibilty of not wearing any, but still feel free to say so haha (it is my case from time to time)
When wearing trousers, it's usually a slip, though there are some legacy items including Yfronts (omitted from your list). I don't have any long johns or combinations either.
