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
Streptococcus pyogenes is - 
Select and explain. 
A. Gram positive cocci, B. Grain negative cocci, C. Gram positive bacilli, D. Gram negative bacilli
A: Gram positive cocci
Answer: A: Gram positive cocci 
Explanation: None