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 type of stress to which dental amalgam is most resistant: \nSelect and explain. \nA. Shear's stress, B. Tensile stress, C. Compressive stress, D. Impact stress", 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]