Critic: The idealized world portrayed in romance literature is diametrically opposed to the debased world portrayed in satirical literature. Nevertheless, the major characters in both types of works have moral qualities that reflect the worlds in which they are presented. Comedy and tragedy, meanwhile, require that the moral qualities of major characters change during the course of the action. Ttherefore, neither tragedy nor comedy can be classified as satirical literature or romance literature. The critic's conclusion follows logically if which one of the following is assumed? ['If a character in a tragedy is idealized at the beginning of the action depicted in the tragedy, he or she must be debased at the end.', 'Some characters in comedies and tragedies are neither debased nor idealized.', "In romance literature and satirical literature, characters' moral qualities do not change during the course of the action.", 'The visions of the world portrayed in works of tragedy and works of comedy change during the course of the action.']