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': 'CCA can be palpated at \nSelect and explain. \nA. Thyroid cartilage., B. 1st tracheal ring., C. Cricoid cartilage., D. Arteries can never be palpated.', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]