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: Anatomy
[{'content': 'Which of the following lymph nodes are known as Delphic nodes? \nSelect and explain. \nA. Pretracheal, B. Paratracheal, C. Supraclavicular, D. Posterior triangle', 'role': 'user'}, {'content': "Answer: A \nExplanation: There is extensive lymphatic network seen in thyroid. Although some lymph channels pass directly to the deep cervical nodes, the subcapsular plexus drains principally to the central compament juxta thyroid - 'Delphian' or pretracheal - and paratracheal nodes and nodes on the superior and inferior thyroid veins, and from there to the deep cervical and mediastinal groups of nodes.", 'role': 'assistant'}]