According to the Textbook's Discussion of Dissociative Disorders

According to the textbook's discussion of dissociative disorders:

A) between 1789 (a young German woman was the earliest reported case) and 1957 (the film The Three Faces of Eve was released) , there were more than 40 000 cases reported worldwide.
B) patients' physiological responses show unique patterns for each personality, which provides empirical support for "mental splitting."
C) the splitting of consciousness in this way is more common among individuals from collectivist cultures than individuals from individualist cultures.
D) each identity appears to have its own memories, preferences, personality traits, and medical problems.