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 component of diet effects plaque composition \nSelect and explain. \nA. Carbohydrate, B. Mineral, C. Protein, D. Fats/lipids', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]