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: Microbiology
[{'content': 'Phagocytosis of Cryptococcus neoformans is inhibited by - \nSelect and explain. \nA. Cryptococcal capsular material, B. The size of the yeast cells, C. The cell walls, D. Toxins produced by the organism', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]