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: Pediatrics
[{'content': 'Which of the following is not a feature of congenital hypothyroidism \nSelect and explain. \nA. Thyroid agenesis, B. Microcephaly, C. Wide open anterior fontanelle, D. Drooling', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Causes of microcephaly include infections, malnutrition or exposure to toxins.\nSymptoms vary and include intellectual disability and speech delay. In severe cases, there may be seizures and abnormal muscle functionality.\nThere is no cure for microcephaly. Treatment involves supportive care, symptom management and close monitoring.', 'role': 'assistant'}]