This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Anatomy
[{'content': 'True about acute osteomyelitis DELETE \nSelect and explain. \nA. Cannot be detected by x-ray before 2 weeks, B. Severe pain, C. Limitation of movements, D. Bone scan detect after 2 weeks', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Answer b and c Perosteal reaction on x-ray seen on 7-10days Bone scan is positive in 1-3days Primary (Hematogenous) osteomyelitis is the most common type Refer Maheshwari 5th/e', 'role': 'assistant'}]