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': 'The type of joint between the sacrum and the coccyx is a: \nSelect and explain. \nA. Symphysis, B. Synostosis, C. Synchondrosis, D. Syndesmosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: The type of joint between the sacrum and the coccyx is symphysis joint.', 'role': 'assistant'}]