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
Fracture treatment can be described as:
a. Reduction
b. Retention
c. Rehabilitation
d. Reunion. 
Select and explain. 
A. A, B, C, B. A, C, D, C. A, B, D, D. B, C, D
A: A, B, C
Answer: A: A, B, C 
Explanation: Fracture treatment can be best described as Reduction, Retention, Rehabilitation.