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
Mannitol Salt agar is used for isolation of ? 
Select and explain. 
A. Gonococcus, B. Pneumococcus, C. Staphylococcus, D. Pseudomonas
C: Staphylococcus
Answer: C: Staphylococcus 
Explanation: Ans. is 'c' i.e., Staphylococcus