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
Upper 2nd premolar’s occlusal view 
Select and explain. 
A. Ovoid > Hexagonal, B. Hexagonal > Ovoid, C. Ovoid always, D. Hexagonal always
A: Ovoid > Hexagonal
Answer: A: Ovoid > Hexagonal 
Explanation: None