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': 'All the following are more in CSF compared to plasma except \nSelect and explain. \nA. Mg++, B. Cl-, C. HCO3-, D. Glucose', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Same in CSF and plasma\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Osmolarity, Sodium concentration\nMore is CSF than plasma\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Cl-, Mg+2, HCO3-, PCO2, creatinine\nLess in CSF than plasma\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 K+, Ca++, pH, protein, glucose, inorganic phosphate, urea, uric acid and cholesterol', 'role': 'assistant'}]