Janis Goes to See a Movie with a Group of Friends

Janis goes to see a movie with a group of friends. As they leave the theatre, she is surprised to hear her friends exclaim that they loved the movie, because she thought the plot was poorly constructed and the acting terrible. She says nothing to the others, though, because she doesn't want to look stupid or offend other people in her group. Janis has succumbed to

A) groupthink.
B) social facilitation.
C) situational attributions.
D) the peripheral route to persuasion.