But then they slid a plastic tube in and the needle it and it was fine . They said I would feel cold going up my arm , but I never did . I remember the doctor telling me I would start seeing the walls move a little , but I was n't .
According to the above context, choose the best option to answer the following question.
Question: Why is the plastic tube being slid in the narrator 's arm ?
Options:
A. The narrator is being given ill treatment .
B. None of the above choices .
C. The narrator is being given medical treatment .
D. The narrator is being toyed with by doctors .


C