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': "Small yellowish elevation on the surface of the mucosa is : \nSelect and explain. \nA. Fordyce's spots., B. Lines Alba., C. Traumatic ulcer., D. Lichen planus.", 'role': 'user'}, {'content': "Answer: A \nExplanation: In many areas of lining mucosa, especially the labial and buccal mucosa, are Fordyce's spots or granules. These spots are a normal variant, visible as small, yellowish elevations on the surface of the mucosa.", 'role': 'assistant'}]