A deficiency in the secretion of adrenocortical hormones may result in:

A) Cushing disease.
B) Graves disease.
C) diabetes mellitus.
D) Addison disease.

Addison disease is a condition caused by a deficiency in the secretion of adrenocortical hormones. This results in symptoms such as fatigue, weakness, weight loss, and low blood pressure. Cushing disease is caused by excess secretion of adrenocortical hormones, Graves disease is an autoimmune disorder affecting the thyroid gland, and diabetes mellitus is a disorder of glucose metabolism.