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: Dental
True about meningococcal vaccine is - 
Select and explain. 
A. Capsule polysaccharide act as a virulent factor for the production of antibody, B. Conjugate vaccine is not given in outbreaks, C. Polysaccharide vaccine should be given to children below 2 years of age, D. Vaccine with polysaccharide B is immunogenic
A: Capsule polysaccharide act as a virulent factor for the production of antibody
Answer: A: Capsule polysaccharide act as a virulent factor for the production of antibody 
Explanation: None