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: Biochemistry
Which of the following food components has maximum thermic effect? 
Select and explain. 
A. Carbohydrate, B. Protein, C. Fat, D. All the 3 have equal value
B: Protein
Answer: B: Protein 
Explanation: Thermic effect (specific dynamic action) is highest for protein. It indicates energy expenditure above resting metabolic energy.