It 's been a very , very strange day . It started badly at midnight as I was babysitting the replacement of a switch in our London datacenter and it was running over . I did n't get to sleep until 0300 .
Why is the narrator having to monitor the work place ?
Pick the best answer from the following options:
A. None of the above choices .
B. This is a typical day for them .
C. They work the night shift .
D. It possesses sensitive data .


D