Which of the following, if true, would create most doubt about film noir not being a legitimate genre?

Directions: Answer the given question based on the following passage:

Film Noir is the collective classification given to movies that characterized the cynicism of the world in the immediate aftermath of World War 2. The films delved into the dark emotions of its characters and were often shot in dark locations to augment the dark, brooding nature of the movies. Pessimism, mistrust, insecurity, and even fear were the emotions that the film makers of the era tried to bring forth in their most primeval form. The main protagonists, the anti-heroes of the age were killers, sociopaths, and even the innocent fall-guys. The movies rarely had happy endings, and frequently ended with the anti-hero dying an un-glorious death. In spite of the age of film noir spanning more than two decades from the years of World War 2 to the 1960s, many critics and commentators do not ascribe the tag of a genre to the film noir age. They say that the movies just depict a mood and set the tone for the film.