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: Dental
[{'content': 'Which of the following post is approximately equal resilient as dentin and good bonding in canal. \nSelect and explain. \nA. Stainless steel post., B. Titanium post., C. Carbon fiber reinforced., D. Glass fiber reinforced.', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]