This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Communicable diseases, Subject name: Social & Preventive Medicine
[{'content': 'Meningococcal quadrivalent vaccine is available for these serogroup Except \nSelect and explain. \nA. A, B. Y, C. W135, D. G23', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Vaccines are available against meningococci of serogroup A, C, W135 and YMonovalent (A or C) bivalent (A,C) trivalent (A, C, w135) quadrivalent (A, C, W135, Y)Park 23e pg: 164', 'role': 'assistant'}]