Underline positioning

I know, I know, underlines are a holdover from the days of typewriting that no one should seriously consider using underlines. Okay, okay, let’s pretend for a moment that we’ve been abducted by aliens and they’re forcing us to use underlines: where should we position underlines?

  • Below descenders
  • Below the baseline
  • Below the basline, with breaks for descenders
  • Something else?