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
If the vertical root fracture occurs through the crown furcation of a maxillary molar in a mesiodistal plane, treatment indicated is: 
Select and explain. 
A. Extraction., B. RCT, C. Hemisection., D. Wait and watch.
A: Extraction.
Answer: A: Extraction. 
Explanation: None