This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Behavioral Disorders in Children, Subject name: Pediatrics
[{'content': 'All are habit disorders except:- \nSelect and explain. \nA. Nail biting, B. Thumb sucking, C. Temper tantrum, D. Bruxism', 'role': 'user'}, {'content': 'Answer: C \nExplanation: - Temper tantrums & breath holding spells- age typical expressions of frustration or anger. Habit disorders- pattern of behavior that is repeated often (nail biting, thumb sucking, bruxism)', 'role': 'assistant'}]