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': 'the following are features of primary hyperaldosteronism - \nSelect and explain. \nA. Pedal edema, B. Polyurea, C. Hyperkalemia, D. Hypeension', 'role': 'user'}, {'content': 'Answer: D \nExplanation: no pedal edema but there is hypokalemia ( potassium depletion in the body ), hypeension( increased sodium absorption ) and polyuria from impairment of urinary concentration ability ( Harrison 17 pg 2260)', 'role': 'assistant'}]