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: Medicine
[{'content': 'True about primary aldosteronism \nSelect and explain. \nA. Pedal oedema, B. Increased rennin, C. Increased Na+, D. All', 'role': 'user'}, {'content': "Answer: C \nExplanation: Answer is C (Increased Na+) Primary Aldosteronism (Conn's syndrome) is associated with Hypeension, Hypernatremia ( tNa+) and Hypokalemia (iK+)", 'role': 'assistant'}]