This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology, Subject name: Medicine
[{'content': 'True about primary aldosteronnism - \nSelect and explain. \nA. Pedal oedema, B. Increased renin, C. Increased Na+, D. Decreased K+', 'role': 'user'}, {'content': 'Answer: D \nExplanation: hypokalemia , diastolic hypeension(retention of sodium) , polyuria , weakness and fatigue are the signs and symptoms ( Harrison 17 pg 2260)', 'role': 'assistant'}]