Which of the following hormones is produced by the adrenal cortex and plays a key role in regulating electrolyte balance?

A Aldosterone ✓
B Cortisol
C Adrenaline
D Insulin

Explanation

Aldosterone is a mineralocorticoid hormone produced by the adrenal cortex that regulates electrolyte balance by promoting sodium retention and potassium excretion.

Source

Berne and Levy Physiology
Hormones and Endocrine Markers Endocrinology Adrenal Gland Hormones Medium MEDICAL Confidence: high