The Film the Truman Show Has a Plot That Resembles

The film The Truman Show has a plot that resembles Plato's "Myth of the Cave." What is the plot?

A) Truman lives in a world he believes to be real, although it is just a movie stage.
B) Truman discovers that the world is nothing but a movie stage, and he proceeds to let others know.
C) Truman and a film director plot to create a make-believe world whose inhabitants believe that shadows cast on a wall are reality.
D) There is no plot in The Truman Show that resembles Plato's story of the cave.