She lay down on the couch next to him and fell asleep . * Spike sat on the arm of the couch , his long black coat wrapped around him , smoking . Buffy sat up . " William 's gon na kill you for smoking in his apartment . " Spike shrugged .
According to the above context, choose the best option to answer the following question.
Question: Why would William be upset ?
Options:
A. They do n't like the fragrance of Buffy .
B. They do n't like the couch .
C. They do n't like the smell .
D. They do n't like Buffy .


C