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
True about T. pallidum is - 
Select and explain. 
A. 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
B: Hyaluronidase - enhances invasiveness
Answer: B: Hyaluronidase - enhances invasiveness 
Explanation: None