Which of the Following Demonstrates the Necessity of Generic Transformation

Which of the following demonstrates the necessity of generic transformation for a continually successful movie genre?

A) A movie genre that has undertaken conservative themes retains the same message during a period when Americans are rethinking long-held political principles.
B) A movie genre becomes unpopular for appearing relatively old-fashioned and silly to a new generation of filmgoers.
C) A movie genre responds to a period of economic turmoil by failing to address, either explicitly or implicitly, anything concerning current events.
D) A movie genre is largely made a field for repetitive sequels, while other genres find original ideas by embracing advanced digital video technology.
E) A movie genre reinvents itself when a host of young directors decide to use its form to create allegories about America's "war on terror."