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': 'MEN II and MEN III are associated with: \nSelect and explain. \nA. C-myc, B. Erb-B2, C. L-myc, D. Ret', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ret', 'role': 'assistant'}]