Filled out your survey. A few things:
Number 6 - I think it's supposed to say "big" not "bit." You might also want to consider that some teachers have multiple schools. For example, my main school is on the "outskirts of a big city" (I think. We are our own city but I wouldn't consider us a big city like Daegu or Busan) but I also have schools that count toward receiving a rural allowance. I just answered for my main school but you might want to clarify.

Good luck!