Read the following context and choose the best option to answer the question.
Context: After waiting for some strong painkillers to kick in , I finally crawled ( very slowly and very painfully ) into the living room and hoisted myself up onto the recliner in here . My legs still throbbed . I could n't move them at all without this horrific , excruciating pain . I kind of stumbled over to the couch after a few hours ( standing was the worst pain I had ever felt in my entire life ) and eventually passed out there . I can stand today , and walk a little bit , but it hurts . Really badly .
Question: What may be the reason I am crawling on the floor to get around ?
Options: 
A. None of the above choices .
B. I am having extremely painful problems in the lower half of my body and am home alone , without help .
C. My legs fell asleep while I was lying on the floor and I could n't feel them to stand .
D. I overdid it when I was jogging earlier and now I 'm having excruciating pain in my legs .


B