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
Total number of dehydrogenases Krebs cycle ? 
Select and explain. 
A. 3, B. 2, C. 4, D. 5
C: 4
Answer: C: 4 
Explanation: Ans. is 'c' i.e., 4