Less Than 30 Minutes into the Four-Hour Film,Sanford Could Tell

Multiple Choice

Less than 30 minutes into the four-hour film,Sanford could tell he was going to hate the movie.He considered____________________________getting up and walking out but felt compelled to sit through the whole movie because he had already spent his money on the ticket.This illustrates

A) the sunk cost principle.
B) the normative model.
C) the due process model.
D) equity theory.