Last year I had major surgery to remove a large tumor . After a short time , I went back to work and was unable to do the work . So , with a mutual agreement I left the job ; that was December 2007 . Now , for the past 8 months I have been unemployed .
According to the above context, choose the best option to answer the following question.
Question: What may be the reason for their unemployment ?
Options:
A. Brain surgery has impacted their working abilities .
B. None of the above choices .
C. They had gotten another brain tumor .
D. They have been unsuccessful with their job apps .


A