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': 'Aflatoxin is produced by the fungus? \nSelect and explain. \nA. Aspergillus flavus, B. Aspergillus fumigatus, C. Aspergillus niger, D. Penicillium marneffei', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Aflatoxin is a mycotoxin that is produced by the fungi Aspergillus flavus and Aspergillus parasiticus. Exposure to aflatoxin can cause hepatic necrosis later progressing to cirrhosis. It also acts as a carcinogen and can produce hepatocellular carcinoma.', 'role': 'assistant'}]