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': 'Recontouring and selective grinding procedures are carried out in complete denture to: \nSelect and explain. \nA. Decrease the vertical dimension of occlusion, B. Decrease cuspal height, C. Enhance curve of spee, D. Remove occlusal disharmony', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]