Read the following context and choose the best option to answer the question.
Context: About a week ago , I woke up with a sharp stabbing pain in the left of my back when I inhaled deeply . It caused me pain to lie down and turn in the night . It 's now been a week and there 's still the same pain , in the same place when I inhale deeply . Anyone have any ideas what this could be ? ?
Question: What may be the reason for the post ?
Options: 
A. To describe medical information
B. To describe a surgery
C. to describe a recovery
D. To describe a perscription


A