This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Systemic Bacteriology Pa 1 (Gram Positive Cocci, Gram Negative Cocci), Subject name: Microbiology
[{'content': 'Which of the following enzymes are used for liquefaction of thick exudates as in empyema? \nSelect and explain. \nA. Streptokinase & NADase, B. Streptokinase & Streptodornase, C. NADase & Hyaluronidase, D. Streptokinase and N acetyl glucosaminidase', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Streptokinase & streptodornase are used for liquefaction of thick exudates as in empyema Enzymes are derived from streptococcus', 'role': 'assistant'}]