The correct answer is D. Its reason for being created.
Explanation
A film is a name given to a cinematographic work in which a story is usually narrated through video, a film is written or adapted by a screenwriter and whose staging depends on the director. Films must have characters, a story, locations, and a purpose to be created. In general, the purpose is the reason to create the movie, in addition to telling a story, leaving a reflection, learning or a point of view of some event. For example, the Titanic Movie tells the story of the sinking of the Titanic ship through the love story of Jack and Rose who know each other on the ship. So, the correct answer is D. Its reason for being created.
