Read the following context and choose the best option to answer the question.
Context: In addition my back was out in an odd way that made it really painful to sit , sleep or breathe . I got some relief Monday , but it has been an uphill battle around here . Not to mention the buckets of snot in my head .
Question: What may be a reason for their pain ?
Options: 
A. None of the above choices .
B. They had gotten injured .
C. They have fallen ill .
D. They had hurt their back .


C