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': 'Vertical measure in mm from granular cell layer to the deepest part of tumour used in Melanoma for prognosis is \nSelect and explain. \nA. Breslow s method, B. Clarks s method, C. Thomas method, D. Ashpit s method', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Breslow s thickness less than 1.7mm carries favorable prognosis.', 'role': 'assistant'}]