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
Centric holding cusp is? 
Select and explain. 
A. Mesiobuccal cusp of maxillary 1st molar, B. Mesiolingual cusp of mandibular first molar, C. Distolingual cusp of mandibular 1st molar, D. Mesiopalatal cusp of maxillary 1st molar
D: Mesiopalatal cusp of maxillary 1st molar
Answer: D: Mesiopalatal cusp of maxillary 1st molar 
Explanation: None