input: The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A 7 years old child comes with fever and tibial swelling exhibits on X- ray exhibits periosteal reaction. Laboratory results show raised ESR and TLC. What is the next step in diagnosis of the patient?   (A) MRI   (B) Pus culture   (C) Bone biopsy   (D) Blood culture
output: ['(A) MRI <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) MRI  (B) Pus culture  (C) Bone biopsy  (D) Blood culture <> possible answers', '  A 7 years old child comes with fever and tibial swelling exhibits on X- ray exhibits periosteal reaction. Laboratory results show raised ESR and TLC. What is the next step in diagnosis of the patient? <> context']