This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Pathology
[{'content': 'Which disease is transmitted by all the components of blood - \nSelect and explain. \nA. Malaria, B. Syphilis, C. Toxoplasma, D. H. pylori', 'role': 'user'}, {'content': "Answer: A \nExplanation: The malariaparasites enter that person's bloodstream and travel to the liver. When the parasites mature, they leave the liver and infect red blood cells.", 'role': 'assistant'}]