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': 'Aflatoxins are produced by ? \nSelect and explain. \nA. Aspergillus flavus, B. Aspergillus niger, C. Aspergillus fumigatus, D. Candida', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Aspergillus flavus . Aflatoxins are produced primarily by filamentous fungi Aspergillus flavus and Aspergillus parasiticus.", 'role': 'assistant'}]