Answer: option 2
When someone has a "biased" statement, this usually means that the situation at hand has not been correctly or fairly judged, and the person making the biased statement has good opinions only to one side of the argument. Biased statements tend to be unfair and poorly judged, causing them to be rude or discourteous to the "other side" of the argument.
Option two is a biased statement because the second half of the sentence is a strongly put opinion. It is not accurate, because the man is a reporter. This statement is biased because he is not suppose to assume it is bad just because half the members supposedly walked out. The reporter is suppose to fairly judge the play based on what he believes to be true based on his facts, not other people's opinions.