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 of mycorbacteria is due to: \nSelect and explain. \nA. Mycotoxin production, B. Cell envelope, C. Resistance to inactivation by heat, D. Proteolytic bacteria', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Friends there are multiple factors are listed as virulence factors of the MTC, few of them are:\n\nLipids and Fatty Acid Metabolism and Synthesis of complex lipids, lipoproteins\nMycolic acid synthesis\nCell envelope and cell wall proteins\nSome secretion system\nProteins Inhibiting Antimicrobial Effectors of the Macrophage and protein kinases\nDifferent Proteases and proteins associated with it\nApoptosis inhibition and arresting the phagosome', 'role': 'assistant'}]