Which of the Following Demonstrates How Genre Is Thought of and Employed

Which of the following demonstrates how genre is thought of and employed by the film industry itself in producing movies?

A) A studio decides to stop production of a fantasy film because of its similarity to another movie of the same genre.
B) A director with no experience shooting Westerns is chosen to helm the production of the biggest Western in the last several decades.
C) An actor associated in the public's mind with the persona of the tough-talking, no-nonsense private detective is hired to play the latest version of film noir hero Philip Marlowe.
D) The sets featured in a recent romantic comedy are reused by another with only slight variations.
E) The current rise in child-oriented movies forces several producers to go with risky, adult-themed scripts in reaction to what they see as a passing fad.