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': 'All of the following are true about OPSI (oppounistic post-splenectomy infection) Except \nSelect and explain. \nA. Develop 1-5 year after splenectomy, B. Max risk is within 1 yr of splenectomy, C. Begin with headache, myalgia, & fever, D. May present with severe septic shock', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Common in first two years after splenectomy but can occur at any time, risk persists for the lifetime. Reference: SRB 5 th edition page no.677', 'role': 'assistant'}]