<prompt> Please answer with one of the option in the bracket. Write reasoning in between . Write answer in between .Q:A young man about to leave for his freshman year of college visits his physician in order to ensure that his immunizations are up-to-date. Because he is living in a college dormitory, his physician gives him a vaccine that prevents meningococcal disease. What type of vaccine did this patient likely receive?? A: Live, attenuated, B: Killed, inactivated, C: Toxoid, D: Conjugated polysaccharide, E: Killed, attenuated,  <response>: This question is asking about the type of meningococcal vaccine given to a college freshman living in a dormitory. Meningococcal disease is caused by the bacterium Neisseria meningitidis. There are two main types of meningococcal vaccines - conjugate vaccines and polysaccharide vaccines. Conjugate vaccines are preferred for long-lasting immunity and are recommended for adolescents and young adults in the US. Polysaccharide vaccines provide short-term immunity and are not routinely used in this population. Based on the patient population described, the vaccine given was most likely a meningococcal conjugate vaccine.D: Conjugated polysaccharide 