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': 'Aldosterone secretion is controlled by all of the following except: \nSelect and explain. \nA. ACTH., B. Increase in ECF volume., C. Increase in potassium ion concentration in ECF., D. Decrease in the sodium ion concentration in ECF.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Aldosterone secretion is controlled by\n\nACTH\nIncrease in potassium ion concentration in ECF\nDecrease in sodium ion concentration in ECF\nDecrease in ECF volume', 'role': 'assistant'}]