Answer
c. aldosterone
Work Step by Step
Hypersecretion problems may result from an ACTH-releasing tumor of the pituitary or from adrenal cortical tumors. The resulting condition depends on the cortical area involved. Hyperactivity of the outermost cortical area results in hyperaldosteronism. Excessive water and sodium ions are retained, leading to high blood pressure and edema. Potassium ions are lost to such an extent that the activity of the heart and nervous system may be disrupted. (p. 348)
