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
Dehydrogenases of HMP shunt are specific for ? 
Select and explain. 
A. FAD, B. NAD, C. NADPH, D. FMN
C: NADPH
Answer: C: NADPH 
Explanation: C i.e. NADPH