This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Musculoskeletal Radiology, Subject name: Radiology
Best Imaging Modality for Pehes disease is? 
Select and explain. 
A. X ray, B. USG, C. CT, D. MRI
D: MRI
Answer: D: MRI 
Explanation: *MRI is The IOC for AVN and Pehes Disease. Depression of right femoral head with bone marrow edema. There is joint effusion