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': 'True about T. pallidum is - \nSelect and explain. \nA. Sialic acid on surface inhibits activation of alternate complement, B. Hyaluronidase - enhances invasiveness, C. Antibody specific DPG, D. Glycosamino glycan on outer sheath inhibits antibody mediated killing of organism', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]