Read the following context and choose the best option to answer the question.
Context: 10 minutes later , I was running around mopping up an overflowing toilet , which was backing up into the tub : ( : ( : ( I called Brad again , and they set up an emergency plumber to come help out . I ' m still waiting to hear about that , at 2:40AM . I ' m to call around 3 , to see what time in the morning he 'll be here .
Question: What may be the reason the plumber is late ?
Options: 
A. He was occupied with too much work .
B. None of the above choices .
C. He does nt like to work during the day .
D. He was too happy to setup an appointment


A