McPhail's method for classifying the behavior of people in crowds into such categories as gesticulation and vocalization indicates that

A) crowds tend to engage in odd and unusual behaviors.
B) large groups of people in public places are best studied through survey methods.
C) Le Bon's contagion theory provides the best explanation for crowd formation.
D) most crowd behavior can be classified as task oriented or relationship oriented.
E) the behaviors performed by people in crowds can be classified into a small number of basic categories.