Which of the following are associated with diabetes mellitus, a common disease in adults? I. Higher sugar level in blood II. Lower sugar level in blood III. Lower insulin level in blood IV. Higher insulin level in blood Select the correct answer by using the codes given below: Codes:

Diabetes mellitus is a metabolic disorder characterized primarily by high blood sugar levels, known as hyperglycemia. This condition occurs either because the pancreas does not produce enough insulin or because the cells of the body do not respond properly to the insulin produced. Statement I is correct because elevated blood glucose is the hallmark of the disease. Statement III is correct because in many cases, especially Type 1 diabetes and advanced Type 2 diabetes, there is a deficiency or lower level of insulin in the blood which prevents glucose from entering the cells. Therefore, higher sugar levels and lower insulin levels are the primary characteristics associated with the disease.