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: Social & Preventive Medicine
[{'content': 'A synthetic “cocktail” vaccine SPf66 has shown potential for the protection against \nSelect and explain. \nA. Dengue/ DHF, B. Japanese encephalitis, C. Lymphatic filariasis, D. Falciparum Malaria', 'role': 'user'}, {'content': 'Answer: D \nExplanation: SPf 66: A synthetic ‘Lytic Cocktail vaccine’ developed for P. Falciparum has been extensively tested –\nFormulated as peptide-alum combination.\n– Safe, effective and reduces risk of developing clinics malaria by 30%.', 'role': 'assistant'}]