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: Surgery
[{'content': 'Best surgical approach in accessing retrosternal\ngoitre is \nSelect and explain. \nA. Sternal, B. Sternal, C. Cervical, D. VATS', 'role': 'user'}, {'content': 'Answer: C \nExplanation: For retrosternal goitre cervical route is preferred.', 'role': 'assistant'}]