This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacteria, Subject name: Microbiology
Oxidase positive bacteria - 
Select and explain. 
A. Pseudomonase, B. V cholerae, C. Gonococcus, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. is 'd' i.e., All of the aboveOxidase positive bacteria* Pseudomonas* Campylobacter jejuni* H. pylori* V. cholerae* Aeromonas spp* Legionella pneumophila* Neisseria (meningococci, gonococci)