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: Orthopaedics
Bachleor plaster for children used for 
Select and explain. 
A. Perthes disease, B. DDH, C. SCFE, D. Synovitis Hip
B: DDH
Answer: B: DDH 
Explanation: None