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
Action of intramedullary 'K' nail is 
Select and explain. 
A. Two-point fixation, B. Three-point fixation, C. Compression, D. Weight concentration
B: Three-point fixation
Answer: B: Three-point fixation 
Explanation: B i.e. Three - point fixation