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 will happen after the doors do not open ?
Pick the best answer from the following options:
A. They will go into their apartment with a key .
B. They will walk in unabated .
C. None of the above choices .
D. They will call building management .


D