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
Which of these teeth are highly sturdy and usually the last ones to be lost? 
Select and explain. 
A. First molar, B. Central incisors, C. Canines, D. Premolars
C: Canines
Answer: C: Canines 
Explanation: None