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: Social & Preventive Medicine
Carbohydrate reserve of human adult is: 
Select and explain. 
A. 100 g, B. 200 g, C. 500 g, D. 1100 g
C: 500 g
Answer: C: 500 g 
Explanation: Carbohydrate reserve of human adult is 500 g. This reserve is rapidly exhausted while fasting. Ref: Park 22nd edition, page 568