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
[{'content': 'Type of growth of streptococcus pyogenes on blood agar - \nSelect and explain. \nA. Alpha hemolytic, B. Beta hemolytic, C. Gamma hemolytic, D. Non-hemolytic', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Beta hemolytic Hemolysis | |||Alpha (a)Beta (b)Gamma (g)* Greenish discolouration with partial hemolysis around the colonieseg - Str. pneumoniae, Str. viridans* Colourless zone of complete hemolysiseg - Str. pyogenes (grp A)Str. agalactiae (grp B)Str equisimilis (grp c)* No hemolysiseg - Enterococci (grp d)", 'role': 'assistant'}]