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': 'A cervical lesion should be restored if it is _____. \nSelect and explain. \nA. Carious, B. Very sensitive, C. Causing gingival inflammation, D. All of the above', 'role': 'user'}, {'content': 'Answer: D \nExplanation: All of these factors indicate that a cervical lesion should be restored. In addition, if the lesion is large and the pulpal or gingival tissues are in jeopardy, it should be considered for restoration.', 'role': 'assistant'}]