When Lyndsay's psychology professor started looking at the ceiling during class,the entire class mimicked the behavior.This is an example of

A) normative social influence.
B) group polarization.
C) informational social influence.
D) the chameleon effect.

Chameleon Effect

The unconscious mimicry of the postures, mannerisms, facial expressions, and other behaviors of one's interaction partners, often facilitating social connection.

Psychology Professor

An academic or professional who teaches psychology and conducts research in the field of psychology at a college or university.

Normative Social Influence

The influence of other people that leads us to conform to be liked and accepted by them.