Read the following context and choose the best option to answer the question.
Context: Stef 's DVD player sat right on top of it , completely covering the vents . I put small boxes under the DVD player to raise it up and unplugged the box to let it cool completely down , but to no avail . I called Comcast and they said that should n't matter .
Question: Why may the DVD player be no longer working ?
Options: 
A. None of the above choices .
B. A wire may be broken .
C. It is overheating .
D. It may not be able to get a charge .


C