The correct option is D Addison's disease
Addison’s disease is caused by the presence of ineffective ACTH which in turn leads to the deficiency of aldosterone and cortisol hormones of the adrenal cortex. Excessive ACTH secretion by anterior pituitary results in hyperproduction of cortisol causing Cushing’s disease. Gull's disease is caused by hypothyroidism in adults and is characterized by lethargy, hair loss and weight gain. Oversecretion of thyroid hormones causes Graves’s disease which is characterized by the formation of the exopthalamic goiter. Thus, the correct answer is D.