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
A pus culture on chocolate agar shows gram negative cocci most likely organism is - 
Select and explain. 
A. H. ducreyi, B. Neisseria gonorrhoeae, C. Str. pyogenes, D. Str. pneumoniae
B: Neisseria gonorrhoeae
Answer: B: Neisseria gonorrhoeae 
Explanation: Ans. is 'b' i.e., Neisseria gonorrhoeae . Amongst the given options only gonococcus is gram negative cocci.