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: Microbiology
[{'content': 'Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as \nSelect and explain. \nA. Active acquired immunity, B. Passive acquired immunity, C. Natural active immunity, D. Passive natural immunity', 'role': 'user'}, {'content': 'Answer: D \nExplanation: None', 'role': 'assistant'}]