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': 'Balanced force technique can be described as: \nSelect and explain. \nA. Positioning and preloading an instrument with a clockwise rotation and shaping with a counter clockwise rotation., B. Insertion with a quarter turn clockwise rotation with slight apical pressure., C. Cutting 180 degree to 270 degree counterclockwise rotation with apical pressure., D. All of the above.', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Balanced Force Technique\nBalanced force technique was introduced by Roane et\xa0al, in 1985. In this technique, flex-R-files, flex-O files, or\xa0any other flexible files with a modified non-cutting tip\xa0are used.\n\nPositioning and preloading an instrument with a\xa0clockwise rotation and shaping with a counter clock\xa0wise rotation\nInsertion with a quarter-turn clockwise rotation with\xa0slight apical pressure\xa0\nCutting 180°-270° counterclockwise rotation with\xa0apical pressure.', 'role': 'assistant'}]