Danielle is happy to learn that her best friend from her hometown is on the phone.However,the sadness in her friend's voice causes Danielle's mood to change from happy to sad.This change in mood resulting from the tone of her friend's voice is called

A) group polarization.
B) mood contagion.
C) social loafing.
D) deindividuation.

Mood contagion is the phenomenon of catching and experiencing emotions that are similar to those of others around us. In this scenario, Danielle's mood changed from happy to sad as a result of the sadness in her friend's voice, indicating mood contagion. Group polarization refers to the tendency of a group to adopt more extreme views after discussion. Social loafing refers to the tendency of individuals to exert less effort in group settings. Deindividuation refers to a loss of self-awareness and self-restraint in group situations, which can lead to impulsive behavior. None of these terms apply to Danielle's situation.