This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Symptoms and signs in psychiatry and classification, Subject name: Psychiatry
[{'content': 'Catatonia is most commonly seen with \nSelect and explain. \nA. Schizophrenia, B. dissociation, C. Anxiety disorder, D. Obsessive compulsive disorder', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Catatonic schizophrenia (Cata: disturbed, tonic: tone) is characterised by a marked disturbance of motor behaviour the charecterstic feuture of catatonia is mutism and stupour catatonia can be rated by a rating scale called as Bush Francis Catatonia Rating Scale.It can present in three clinical forms: excited catatonia, stuporous catatonia, and catatonia alternating between excitement and stupor. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no. 59', 'role': 'assistant'}]