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
Process shown in color plate is called: 
Select and explain. 
A. Mandibular mesial root resection, B. Mandibular distal root resection, C. Hemisection., D. All of the above
C: Hemisection.
Answer: C: Hemisection. 
Explanation: None