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
Synaitis of Hip is 
Select and explain. 
A. Is self limiting, B. Common in < 5 years of age, C. Markedly increased ESR, D. Due to Trauma
D: Due to Trauma
Answer: D: Due to Trauma 
Explanation: None