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': 'The objectives of cleaning and shaping are all the following EXCEPT \nSelect and explain. \nA. To debride the root canal, B. To shape/contour the root canal walls, C. To aid condensation of an inert filling material, D. Should keep the apical foramen as small as practical', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]