This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Growth, Development, and Behavior, Subject name: Pediatrics
[{'content': 'What is the most probable cause of large head in this child? \nSelect and explain. \nA. Osteogenesis imperfecta, B. Mucopolysaccharidosis, C. Hydrocephalus, D. Cerebral gigantism', 'role': 'user'}, {'content': "Answer: C \nExplanation: c. HydrocephalusLarge head in an infant with venous prominences over scalp and presence of 'setting-sun sign', suggest hydrocephalus.", 'role': 'assistant'}]