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
Best prognosis among RCC is 
Select and explain. 
A. Clear cell, B. Papillary, C. Chromophobe, D. Collecting duct
C: Chromophobe
Answer: C: Chromophobe 
Explanation: Chromophobe has best prognosis
Collecting duct has the worst prognosis.