This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory Chain, Subject name: Biochemistry
The energy generated from alcohol is: 
Select and explain. 
A. 4 kcal/g, B. 0 kcal/g, C. 7 kcal/g, D. 9 kcal/g
C: 7 kcal/g
Answer: C: 7 kcal/g 
Explanation: Ans. C. 7kcal/gAverage energy available from macronutrients is as follows:Carbohydrate--4kcal/gProtein--4kcal/gFat--9kcal/gAlcohol--7kcal/g