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': 'A window is prepared on the labial side of stainless steel crown for improvement in aesthetics, this technique is known as: \nSelect and explain. \nA. Reverse stainless steel crown technique., B. Basket crown technique., C. Aesthetic crown technique., D. None.', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Reverse crown technique is used to correct crossbite.', 'role': 'assistant'}]