Dissociative Identity Disorder (Formerly Known as Multiple Personality Disorder) Was

Multiple Choice

Dissociative identity disorder (formerly known as multiple personality disorder) was extremely rare before the 1950s, but by the 1990s, some therapists were reporting many cases of this disorder. What is the most likely reason for the increase in this disorder?

A) Some therapists began looking for this disorder and unintentionally created additional personalities through suggestive techniques.
B) The disorder is caused by environmental toxins that were heavily used during the 1970s and 1980s.
C) The disorder is caused by the Southeast Asian Flu, and there was a mild epidemic in the U.S. during the 1970s and 1980s.
D) A wide-spread genetic mutation seemed to occur in the 1960s, resulting in more people being born with the disorder.