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
In which of the tooth is the mesiodistal measurements is greater lingually than facially: 
Select and explain. 
A. Maxillary 1st premolar, B. Mandibular 2nd premolar, C. Mandibular 1st premolar, D. Maxillary 1st molar
D: Maxillary 1st molar
Answer: D: Maxillary 1st molar 
Explanation: None