This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Dental
[{'content': 'When the cry of child is characterized by a siren like\nvocabulary, it is called as \nSelect and explain. \nA. Compensatory, B. Frightened, C. Hurt, D. Obstinate', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]