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: Pathology
[{'content': 'Edema is due to \nSelect and explain. \nA. Increased albumin in blood and decreased globin, B. Decreased albumin conc. in blood, C. Increased osmotic pressure, D. None of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]