What is the meaning of "liable" as it is used in the text

A．The author makes fun of the President.
B．The author thinks highly of the film.
C．The author is a fan of Hollywood comedies.
D．The author wishes to become the American President.

A．To tell the reader about the American government.
B．To discus the Americans' ideas about the President.
C．To make a comparison between Dave and other films.
D．To introduce a new film to the reader.