Ahh ... on weekends we need to input a PIN code on top of scanning . Well , let 's input the PIN ... Normally when I do this , I can hear the doors unlocking immediately . This time there was no response .
What was the reason we could not get in the building ?
Pick the best answer from the following options:
- There was a quick response to the PIN
 - None of the above choices .
 - The scanner responded to the PIN
 - The scanner was working .


None of the above choices .