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 is true about Odontoblastic process \nSelect and explain. \nA. Provides matrix vesicle, B. Helps in initial mineralization of mantle dentin, C. Extent of the tubules is only till 1/3rd of distance, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]