This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardio thoracic surgery  , Subject name: Surgery
[{'content': 'The most popular incision for open general thoracic surgical procedure is \nSelect and explain. \nA. Anterior thoracotomy, B. Median sternotomy, C. Lateral thoracotomy, D. Transverse thoracosternotomy', 'role': 'user'}, {'content': "Answer: B \nExplanation: For open general thoracic surgery,the most popular incision is median sternotomy.Here,an incision is made from the jugular or suprasternal notch to the lower end of the xiphisternum.The sternum is divided & retracted to expose the thymus superiorly & the pericardium inferiorly. Reference:Bailey & Love's sho practise of surgery,25 th edition,page no:851", 'role': 'assistant'}]