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
Coenzymes for pyruvate dehydrogenase are A/E 
Select and explain. 
A. TPP, B. CoA, C. Lipoic acid, D. NADPH
D: NADPH
Answer: D: NADPH 
Explanation: D i.e. NADPH