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: Pathology
[{'content': 'Prolonged parasitism in malaria is due to - \nSelect and explain. \nA. Antigenic variation, B. Intracellularity of parasite, C. Immunosuppression, D. Sequestration', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]