When You Mention a New Movie That You'd Like to See

When you mention a new movie that you'd like to see, your friend wrinkles his nose, shrugs his shoulders and says nothing. From this nonverbal behaviour, you infer that he isn't interested in this movie; that inference is part of a process known as

A) cognitive perception.
B) social-cultural theory.
C) social cognition.
D) social perception.