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: Radiology
Shepherd's crook deformity is a characteristic radiological feature of 
Select and explain. 
A. Osteosarcoma, B. Chondrosarcoma, C. Fibrous dysplasia, D. Vertebral hemangioma
C: Fibrous dysplasia
Answer: C: Fibrous dysplasia 
Explanation: Shepherd's crook deformity - Fibrous dysplasia
Coat - hanger appearance - Osteochondroma.