Describe the Rationale for the Use of Mineralocorticoid Replacement Therapy

Describe the rationale for the use of mineralocorticoid replacement therapy for a patient with Addison's disease.

A) Mineralocorticoids will reduce harmful bronzing of the skin.
B) Mineralocorticoids will mimic the action of cortisol, which this patient will be lacking.
C) Mineralocorticoids will mimic the action of aldosterone, which this patient will be lacking.
D) Mineralocorticoids will reduce excessive serum glucose levels.