Final answer:
The true statement about diabetes is that it is due to a deficiency or decreased production of insulin by the pancreas. Type 1 diabetes is characterized by an immune attack on the beta cells, while type 2 involves insulin resistance and is most common.
Step-by-step explanation:
The correct answer to the question of which statement is true about diabetes is D. Diabetes is due to a deficiency or decreased production of insulin by the pancreas. Type 1 diabetes involves the immune system attacking the insulin-producing beta cells in the pancreas, which results in little to no insulin production. On the other hand, type 2 diabetes is characterized by insulin resistance and often impaired insulin secretion, though the pancreas typically still produces some insulin. It is also worth noting that type 2 diabetes accounts for approximately 90-95% of all diabetes cases and is heavily influenced by lifestyle factors such as diet, physical activity, and body weight. Management of type 2 diabetes may include diet changes, exercise, medication, and sometimes insulin therapy.