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': 'Flowable composites differ from nanofilled composites in all aspects except: \nSelect and explain. \nA. Flowable have a higher filler content, B. Flowable have lower wear resistance, C. Flowable have higher polymerization shrinkage, D. Flowable have lower strength', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Flowable composite have lower filler content and consequently inferior physical properties such as wear resistance and strength compared to other composites with higher filler load. They also exhibit higher polymerization shrinkage.\nNote: Filler loading of nanofilled composite is 60% by volume and 78% by weight', 'role': 'assistant'}]