This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: mycology, 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: The best-known mycotoxin is aflatoxin produced by Aspergillus flavus. It is present in ground nuts, corns and peas. It can cause hepatoma in animals. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition', 'role': 'assistant'}]