What is described as a normal blood glucose range?

• A. 60-80 mg/dL
• B. 120-140 mg/dL
• C. 80-120 mg/dL
• D. 140-180 mg/dL

Answer: (C)

Normal blood glucose sits in a middle range because the body carefully balances hormones like insulin and glucagon to keep cells, especially brain cells, fueled without extremes. When glucose stays in this steady window, tissues get a reliable energy supply and the risk of symptoms from fuel shortage (hypoglycemia) or from excessive glucose (hyperglycemia) is minimized.

The option that describes a middle, stable range best matches this normal state. The remaining options describe values that are too low for normal functioning or too high, which would indicate hypoglycemia risk or hyperglycemia, respectively.