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
The time necessary for healing of fracture depends on the following factors: 
Select and explain. 
A. Age of the patient, B. Location of the fracture, C. Type of the fracture, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: D i.e. All