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': 'Which of the following is not a step as part of the technique for a shallow (partial) pulpotomy? \nSelect and explain. \nA. Rubber dam isolation, B. Pulp tissue removed to about 2 mm below the exposure, C. Use of a large round carbide bur in slow speed handpiece to remove tissue, D. Restoration of the cavity with a hard-setting cement', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]