Dave Thought He Had Selected a "Cool Tie" to Wear

Multiple Choice

Dave thought he had selected a "cool tie" to wear to work. However, after a few giggles and a "rolling of the eyes" from several coworkers, Dave went to his office and took off the tie. These reactions of the coworkers would be referred to as

A) stereotyping.
B) groupthink.
C) group sanctions.
D) the actor-observer bias.