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: Microbiology
Hemophilus influenzae requres: 
Select and explain. 
A. Factor V, B. Factor X, C. Factor V & X, D. Factor VII
C: Factor V & X
Answer: C: Factor V & X 
Explanation: Ans. is. 'c' i. e., Factor V & X