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
[{'content': 'Virulence factor of cryptococcus includes all, except: \nSelect and explain. \nA. Polysaccharide capsule, B. Production of protease, C. Ability to make melanin, D. Urease production', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. d. Urease production', 'role': 'assistant'}]