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: Surgery
[{'content': 'A 40 year old man presented with a flat 1 cm x 1 cm scaly, itchy black mole on the front of thigh. Examination did not reveal any inguinal lymphadenopathy. The best course of management would be - \nSelect and explain. \nA. FNAC of the lesion, B. Incision biopsy, C. Excisional biopsy, D. Wide excision with inguinal lymphadenectomy', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]