Which of the following is TRUE of dissociative identity disorder?

A) Alters may have different eyeglass prescriptions and allergies.
B) For a diagnosis there must be at least 4 alters that control the person's behaviour.
C) Alters typically share the same memories and have similar histories and mannerisms.
D) The various personalities always claim to be of the same gender.
E) The host is never aware of the various alters.

Alters in dissociative identity disorder may have different eyeglass prescriptions and allergies, as well as other physical characteristics such as handwriting and voice pitch. However, the number of alters required for a diagnosis and whether they share memories and mannerisms vary among individuals with the disorder. The claim that alters always claim to be the same gender is also false, as some individuals may have alters of a different gender. The host may or may not be aware of the alters, as this also varies among individuals.