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
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 - 
Select and explain. 
A. FNAC of the lesion, B. Incision biopsy, C. Excisional biopsy, D. Wide excision with inguinal lymphadenectomy
C: Excisional biopsy
Answer: C: Excisional biopsy 
Explanation: None