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
[{'content': 'Removal of senescent RBC from circulation by spleen is called - \nSelect and explain. \nA. Culling, B. Pitting, C. Filtering, D. Phagocytosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]