The answer is: C. denied the motion for summary judgment because there were questions of fact about the restaurant's knowledge of Hoag's drinking habits that had to be determined by a trial.
In order for the motion to be granted, Sabo need to provide the court with solid evidence that People's restaurant purposefully make Hoag drunk in order to cause harm to him.
Since Sabo could not provide such evidence, all the responsibilities for the accident only fall to Hoag's hands. If Sabo wanted to sue someone for the damage, Hoag s the only target available for him.