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': 'Which of the following is true about division A bone \nSelect and explain. \nA. Not mandatory  FP-1 prosthesis, B. Full range of prosthetic options is available, C. RP-4 doesn’t require osteoplasty, D. All of the above', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]