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: Dental
Mc Spadden compactor is of __________  shape: 
Select and explain. 
A. Reverse blade of K-file, B. Reverse blade of H-file, C. Endosonic instrument, D. None of the above
B: Reverse blade of H-file
Answer: B: Reverse blade of H-file 
Explanation: None