This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Magnetic Resonance Imaging, Subject name: Radiology
[{'content': 'Investigation of choice for acute osteomyelitis? \nSelect and explain. \nA. CT Scan, B. MRI, C. Bone Scan, D. PET', 'role': 'user'}, {'content': 'Answer: B \nExplanation: MRI is the investigation of choice for Acute Osteomyelitis MRI is the Investigation Of Choice For evaluating Bone Marrow pathologies Avascular Necrosis of the femur Pehes disease Ankylosing Spondylitis Stress fracture Figure: MRI showed advanced osteomyelitis of the distal femur with a central bone sequestrum and septic ahritis of the knee joint.', 'role': 'assistant'}]