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: Ans. is 'b' i.e., Intracellularity of parasite", 'role': 'assistant'}]