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': "Closure of the anterior fontanelle is delayed in all except- \nSelect and explain. \nA. Down's syndrome, B. Osteogenesis imperfecta, C. Hypogonadism, D. Hypothyroidism", 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Hypogonadism Delayed closure of anterior fontanel / ide (large) anterior fontanel o The anterior fontanel normally closes between 12 to 18 months of age. o The presence of excessively large anterior fontanel and its delayed closure is a recognised clinical feature in following conditions.", 'role': 'assistant'}]