Most popular historical films are not documentaries; they are dramatic presentations of historical events. Such presentations cannot present the evidence for the accuracy of what they portray. Consequently, uninformed viewers of dramatic historical films should not regard them as accurate portrayals of historical events. Which one of the following principles, if valid, most helps to justify the reasoning in the argument? ['One should never regard a historical account to be accurate unless one has considered the evidence on which it is based.', 'Historical documentaries should be careful to present all the evidence when attempting to inform their audiences about historical events.', 'Writers of historical dramas should attempt to provide their own distinctive insights into the meaning of the historical events they are portraying.', 'Dramatic presentations of historical events are better suited for educational purposes if evidence supporting the accuracy of the presentation is also presented.']