This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oral cavity & Oesophagus, Subject name: ENT
[{'content': 'Treatment of leukoplakia is \nSelect and explain. \nA. Radiation, B. Excision and Cryotherapy, C. Topical chemotherapy, D. Repositioning of ill fitting dentures', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Management of Leukoplakia : (i) Many of the lesions will disappear spontaneously if the causative agent is removed.(ii) In lesions with higher potential for malignant change, a biopsy is taken to rule out malignancy.(iii) In suspicious small lesions, surgical excision or ablation with laser or cryotherapy can be done. (Ref: Textbook of diseases of ENT, PL Dhingra, 7th edition, pg no. 253)', 'role': 'assistant'}]