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': 'Split major connector is which type of stress breaker? \nSelect and explain. \nA. Type I, B. Type II, C. Type III, D. Type IV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Split major connector (or) split lingual bar is a type II stress breaker. \nThe major connector is split by an incomplete cut, parallel to the occlusal surface of the teeth into two units, namely upper and lower unit.\nThe denture base is connected to the lower unit and the rest and direct retainers are connected to the upper unit.', 'role': 'assistant'}]