Dexter Trivia (3 of 4)_ Which John Lithgow Movie Were They Watching?

For today's "Dexter" trivia question, we go back to the show's fourth season when John Lithgow guest-starred as Arthur Mitchell also known as 'the Trinity Killer' (pictured above). Lithgow won an Emmy for the part.

As an in-joke, according to the Internet Movie Database, there is a scene in one of that season's episodes when a Lithgow film from the 1980s was being shown on a tv set in a living room.

Was that movie:

A) Footloose (original version)

B) The World According to Garp

C) Terms of Endearment

D) Harry and the Hendersons