Read the following context and choose the best option to answer the question.
Context: What a crazy weekend ! Last night some powerful thunderstorms moved through right before church and knocked the power out in half the building . ( I do n't know how it went out in half the building .
Question: what is the reason having power off in half the building makes you not know how it went out ?
Options: 
A. It is a mystery whenever power goes off .
B. Outages are perplexing .
C. It is unusual for power to be out in only part of any building as the power usually feeds from the same Power drop line .
D. I hate it when power outages occur .


C