Final answer:
The correct way to mark a doorway that is not an exit, but can be mistaken for one, is with a sign that says 'Not an exit'. The correct option is 2) With a sign that says 'Not an exit'
Step-by-step explanation:
The correct answer for marking a doorway which is not an exit, but may be mistaken for an exit, is option 2) With a sign that says 'Not an exit'.
This is an important safety measure to prevent confusion and potential accidents in buildings and public spaces. By clearly marking doors that are not exits, people can easily identify the correct exit routes in case of emergency.
Using signs that say 'Exit' or 'Emergency exit' for non-exit doorways would create confusion and may lead people to choose the wrong path when trying to evacuate a building. The correct option is 2) With a sign that says 'Not an exit'