This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
Fasting blood sugar in normal individuals is:September 2007 
Select and explain. 
A. 80-100 mg/100 ml, B. 100 -120 mg/100 ml, C. 120 -140 mg/100 ml, D. 140-160 mg/100 ml
A: 80-100 mg/100 ml
Answer: A: 80-100 mg/100 ml 
Explanation: Ans. A: 80-100 mg/100 mlFBS in early morning is normally 80-90 mg/100 ml and 110 mg/100m1 is considered to be the upper limit of normal.