How Does Gustave Le Bon Define Emotional Contagion

How does Gustave Le Bon define emotional contagion?

A) When an individual is exposed to information that conflicts with their prior beliefs.
B) When the media manipulates its audience to feel a certain way about a subject.
C) When individuals get caught up in crowd behaviors and take part in actions they otherwise would never consider.
D) When societal norms are challenged by a marginalized community and begin to shift.