Charcot's Most Important Scientific Contribution Was Probably His

Charcot's most important scientific contribution was probably his

A) victory over the Nancy School in the debate about the nature of hypnosis.
B) demonstration that hysteria was caused by neurological degeneracy.
C) demonstration of the relationships between hysteria and crowd behavior.
D) bringing scientific respectability to the study of such previously unfashionable subjects as hysteria and hypnotism.