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 the primary reason for using plastic teeth in a removable partial denture? Plastic teeth are: \nSelect and explain. \nA. Resistant to wear, B. Resistant to stains, C. Esthetically acceptable, D. Retained well in acrylic resin', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]