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
True about pneumococci is except: 
Select and explain. 
A. Optochin S, B. Bile solubility, C. Inulin fermentation, D. Catalase positive
D: Catalase positive
Answer: D: Catalase positive 
Explanation: Catalase positive