I think its the system cell mah dude in other words its the T-CELL
I would say yes, all buildings should be accessible. For one, what if there is an emergency? How would they get to where they need to be if not? Fire safety, without an accessible building there would be no way of entry to help.
Answer:
16. option. A And 17 option. B
Yes you just need to learn how to balance your time between the three