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: Surgery
Stress fracture is treated by: 
Select and explain. 
A. Rest, B. Cast immobilization, C. Closed reduction, D. Internal fixation
B: Cast immobilization
Answer: B: Cast immobilization 
Explanation: B i.e. Cast immobilization