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': 'Filler loading is found highest in: \nSelect and explain. \nA. Hybrid (small particles ) composite, B. Microfilled composite, C. Hybrid composite, D. Flowable composite', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]