It has been a staple of drama to feature an innocent young protagonist, eager to make a mark on the world, who is stymied by an indifferent or hostile society. Since the playwrights of such works wished the audience to empathize with the protagonist, historians do not regard these plays as serious revelations of what the societies presented in the plays were really like. Which one of the following, if true, most helps to explain the viewpoint of the historians described above? ['The historians believe that plays often contain serious revelations of what the societies presented in those plays were like.', 'The historians believe that only the most popular plays within a society accurately portray that society.', 'The historians believe that playwrights tend to exaggerate the weaknesses of a society for the sake of dramatic effect.', 'The historians believe that plays tend to provide useful information about the time and society in which they were written.']