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
Normally which tooth remains in mouth lastly? 
Select and explain. 
A. Maxillary canine, B. Mandibular canine, C. Mandibular central & lateral incisor, D. Maxillary 1st premolar
B: Mandibular canine
Answer: B: Mandibular canine 
Explanation: Mandibular canine has the maximum chances of last remaining tooth in mouth.