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': 'What is the daily requirement of potassium in a healthy adult? \nSelect and explain. \nA. 2-3 g/day, B. 3-4 g/day, C. 4-5 g/day, D. 5-7 g/day', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Minimum daily requirement for potassium in healthy adults is estimated to be 2g. The average intake of potassium among the adult population of industrialized world is approximately is 2-3 per day. Recommended daily intake of potassium to reduce risk of high blood pressure, stroke, and hea disease is 4-5g/d.', 'role': 'assistant'}]