Diabetes mellitus is characterized by too much glucose buildup in the blood. In diabetes, this is because the target cells of the body's tissues fail to respond to insulin; in later stages of this type of diabetes, the begins to fail and eventually stops secreting the hormone insulin, which is required to decrease blood glucose levels. In diabetes, this is because there are number of beta cells available to secrete insulin; this results in an insufficient amount of insulin to meet the demands of the body. Now, choose the individual who is most likely to have type 2 diabetes:

A. A 6-year-old child

B. A 62-year-old inactive man who is tired all the time

C. A 40-year-old runner with tendonitis

D. An overweight teenage girl whose grandmother has diabetes