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': 'All these factors affect the height and thickness of facial and lingual bony plates EXCEPT \nSelect and explain. \nA. Alignment of teeth, B. Angulation of root to the bone, C. Occlusal forces, D. Mesiodistal angulation of crest of interdental septum', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]