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': 'Fear is \nSelect and explain. \nA. A primary emotion acquires soon after birth, B. A primary emotion acquired in utero, C. A primary emotion acquires several years after birth, D. Not a primary emotion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]