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': 'Torsional force is: \nSelect and explain. \nA. Compression, B. Tensile force, C. Shear, D. Transverse bending force', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]