The hormone _____ which is secreted by the adrenal _____, causes the kidney to conserve sodium and excrete potassium ions and indirectly helps to maintain systemic blood pressure.
A. Cortisol; cortex.
B. Adrenocorticotropic (ACTH); Cortex.
C. Epinephrine; medulla.
D. Angiotensin I; medulla.
E. Aldosterone; cortex.
