A Patient Diagnosed with Type 2 Diabetes Mellitus Becomes Insulin

A patient diagnosed with type 2 diabetes mellitus becomes insulin dependent after a year of therapy with oral diabetes medications. When explaining this change in therapy, the provider will tell the patient

A) it is necessary because the patient cannot comply with the previous regimen.
B) that strict diet and exercise measures may be relaxed with insulin therapy.
C) the use of insulin therapy may be temporary.
D) this is because of the natural progression of the disease.