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
[{'content': 'Functional cusp bevel has to be placed in following cusps EXCEPT: \nSelect and explain. \nA. Mesiopalatal cusp, B. Distolingual cusp of the mandibular molar., C. Distopalatal cusp, D. Distobuccal cusp of mandibular molar .', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]