This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Skin, Subject name: Medicine
[{'content': 'Which of the following statements about the prognosis of cutaneous T-cell lymphoma is true? \nSelect and explain. \nA. rapidly downhill, B. determined by the type of medical care, C. rarely fatal, D. remissions and exacerbations, but with eventual progression to a fatal outcome', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The typical course of mycosis fungoides is an initial erythematous stage (which might become diffuse and cause an exfoliative dermatitis as in this case), a plaque stage, and a tumor stage. The course is usually progressive through these stages, but all stages can be bypassed. The early stages may progress slowly with remissions or exacerbations. The disease can be rapidly progressive, particularly when the tumor stage is reached. The disease is invariably fatal.', 'role': 'assistant'}]