This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Sleep disorders and eating disorders, Subject name: Psychiatry
[{'content': 'True about REM sleep is \nSelect and explain. \nA. Night mares, B. Night terror, C. Somniloquy, D. None', 'role': 'user'}, {'content': 'Answer: A \nExplanation: ParasomniasParasomnias are dysfunctions or episodic nocturnal events occurring with sleep, sleep stages or paial arousals. Most parasomnias are common in childhood though they may persist into adulthood.Stage 4 Sleep Disorders:These disorders occur during deep sleep, i.e. Stages 3 and 4 of NREM-sleep.Nightmares (which occur during REM sleep) are clearly remembered in the morning. Ref: A Sho Textbook of Psychiatry, Niraj Ahuja, 7th Edition, pg. no. 140', 'role': 'assistant'}]