Futurist: Artists in the next century will be supported largely by private patrons. Because these patrons will almost invariably be supporters of the social order -- whatever it happens to be at the time -- art in the next century will rarely express social and political doctrines that are perceived to be subversive of that social order. Which one of the following principles, if valid, provides the most support for the futurist's inference? ['Artists tend to become more critical of contemporary social and political arrangements after they are freed of their dependency on private patrons.', 'Art patrons tend not to support artists whose art expresses social and political views that are in opposition to their own.', 'Art patrons tend to oppose all social change except that initiated by artists.', 'Artists are as prone to attack the contemporary social and political order in their work as they are to defend it.']