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 premolar with the occlusal groove pattern that may simulate the letter "Y" is: 
Select and explain. 
A. Maxillary first, B. Maxillary second, C. Mandibular second, D. Mandibular first
C: Mandibular second
Answer: C: Mandibular second 
Explanation: None