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: Physiology
[{'content': 'About CSF following statement (s) is/ are true: \nSelect and explain. \nA. Specific gravity is 1.003 - 1.0008, B. Daily production is 550 ml/day, C. Total volume of CSF is 150 ml, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A, C, & B i.e. Specific gravity is 1.003 - 1.0008, Total volume of CSF is 150 ml , & Daily production is 550 ml/day', 'role': 'assistant'}]