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
Sickle cell anemia is associated with which type of RCC 
Select and explain. 
A. Medullary, B. Papillary, C. Chromophobe, D. Colloid
A: Medullary
Answer: A: Medullary 
Explanation: Medullary ca is least common and it is associated with SCD