This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Surgery
[{'content': 'Pneumococcal vaccine is given how much time before splenectomy \nSelect and explain. \nA. 2 weeks, B. 1 week, C. 3 days, D. 1 month', 'role': 'user'}, {'content': 'Answer: A \nExplanation: It is given as a protection against pneumococcus. as there is reduced IgM, tuftin, properdin and other antibodies, phagocytosis of encapsulated bacteria is defective so post splenectomized patients are more prone to pneumococcal infection Reference: SRB 5th edition page no: 677', 'role': 'assistant'}]