Which of the following statements accurately reflects the pathophysiology of diabetes insipidus?
A. Diabetes insipidus is caused by a deficiency of insulin production by the pancreas
B. Diabetes insipidus is characterized by a lack of response to insulin leading to increased blood glucose levels
C. Diabetes insipidus is a result of decreased secretion of antidiuretic hormone (ADH) leading to excessive urination and thirst
D. Diabetes insipidus is caused by insulin resistance leading to an inability of cells to take up glucose