Final answer:
Conn's syndrome, or primary hyperaldosteronism, is characterized by high aldosterone levels in the blood. The symptoms mainly result from electrolyte imbalances. The most common symptom is muscle weakness, tiredness, and nocturia due to hypokalemia.
Step-by-step explanation:
Conn's syndrome, also known as primary hyperaldosteronism, is characterized by high levels of aldosterone hormone in the blood. The symptoms of Conn's syndrome are primarily related to electrolyte imbalances caused by the excess aldosterone. The correct answer is A) Muscle weakness, tiredness, and nocturia due to hypokalemia. Hypokalemia, or low potassium levels, is common in Conn's syndrome and can lead to muscle weakness, fatigue, and increased urination at night.