The Nurse Explains That Type 1 Diabetes Mellitus Is a Disease

The nurse explains that type 1 diabetes mellitus is a disease in which the body does not produce enough insulin; consequently,the blood glucose is elevated because of the:

A) Prolonged elevation of stress hormone (cortisol, epinephrine, glucagon, growth hormone) levels.
B) Malfunction of the glycogen-storing capabilities of the liver.
C) Destruction of the beta cells in the pancreas.
D) Insulin resistance of the receptor cells in the muscle tissue.