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
The sharpest cusp of primary first mandibular molar tooth is: 
Select and explain. 
A. Mesiobuccal, B. Distobuccal, C. Mesiolingual, D. Distolingual
C: Mesiolingual
Answer: C: Mesiolingual 
Explanation: None