Final answer:
Conn's syndrome is linked to hyperaldosteronism, which is characterized by the overproduction of aldosterone, resulting in high blood pressure and low potassium levels. Therefore, the correct answer is A. Hyperaldosteronism.
Step-by-step explanation:
The condition that may be linked to Conn's syndrome is hyperaldosteronism. Conn's syndrome is characterized by the overproduction of the hormone aldosterone by the adrenal glands, which leads to an increase in the reabsorption of sodium and water by the kidney.
This can result in high blood pressure (hypertension) and low potassium levels (hypokalemia), which are common signs and symptoms of Conn's syndrome. In contrast, hypoaldosteronism would involve abnormally low levels of aldosterone, which is not characteristic of Conn's syndrome. Therefore, the correct answer is A. Hyperaldosteronism.