This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
[{'content': 'RBC&;s are enlarged in infection with - \nSelect and explain. \nA. P. Vivax, B. P. Malariae, C. P. Ovale, D. P. Falciparum', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]