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': 'The exchange of gases between plasma and tissue fluid is a function of \nSelect and explain. \nA. Partial pressures, B. Hydrostatic pressures, C. Osmotic pressure differentials, D. Difference in volume percent of gases', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]