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': 'For better osseo integration modifications on implant surfaces include \nSelect and explain. \nA. Sandbasting with Aluminum oxide, B. Etching with Phosphoric acid, C. Plasma sprayed Titamum, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]