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: Pathology
[{'content': 'Earliest complaint of OSMF patient is: \nSelect and explain. \nA. Blanching, B. Burning sensation, C. Restricted mouth opening, D. Shrunken uvula', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Prodromal\xa0Symptoms (Early OSF)\xa0\nThis includes a burning sensation in the mouth when consuming spicy food, appearance of vesicles especially on the palate, ulcerations or recurrent generalized inflammation of the oral mucosa, excessive salivation, defective gustatory sensation and dryness of the mouth.\xa0There are periods of exacerbation manifested by the appearance of small vesicles in the cheek and palate. The intervals between such exacerbations vary from 3 months to 1 year. Focal vascular dilatations manifest clinically as petechiae in the early stages of the disease.\nReference: Shafer’s Textbook of ORAL PATHOLOGY Eighth Edition page no 148', 'role': 'assistant'}]