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 among the following is a neural tube defect \nSelect and explain. \nA. Diastematomyelia, B. Corpus callosal agenesis, C. Holoprosencephaly, D. Schizencephaly', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Diastematomyelia (split spinal cord) is an example of neural tube defect.', 'role': 'assistant'}]