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': 'Biopsy from a mole on the foot shows cytologic atypia of melanocytes and diffuse epidermal inflitration by anaplastic cells, which are also present in the papillary and reticular dermis. The most likely diagnosis is - \nSelect and explain. \nA. Melanoma, Clark level IV, B. Congential melanocytic nevus, C. Dysplastic nevus, D. Melanoma, clark level III', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]