This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Somatoform disorders, Subject name: Psychiatry
[{'content': 'The most common form of dissociation hysteria is \nSelect and explain. \nA. Fugue, B. Amnesia, C. Multiple perosonality, D. Somnambulism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Dissociative Amnesia This is the commonest clinical type of dissociative disorder. Occurring mostly in adolescent and young adults (females more than males, except in war), it is characterised by a sudden inability to recall impoant personal information (amnesia), paicularly concerning stressful or traumatic life events. The amnesia cannot be explained by everyday forgetfulness and there is no evidence of an underlying medical illness. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no. 100', 'role': 'assistant'}]