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 group of lymph nodes are known as 'delphic nodes'? \nSelect and explain. \nA. Prelaryngeal, B. Paratracheal, C. Supraclavicular, D. Posterior triangle", 'role': 'user'}, {'content': 'Answer: A \nExplanation: Juxta visceral chain of anterior cervical lymph nodes consists of prelaryngeal, pretracheal, and paratracheal nodes. Prelaryngeal node (Delphian node) lies on cricothyroid membrane and drains subglottic region of larynx and pyriform sinuses.', 'role': 'assistant'}]