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': 'Malt workers lung is associated with: \nSelect and explain. \nA. Aspergillus clavatus, B. Aspergillus fumigatus, C. Micropolyspora faeni, D. Actinomyces israeli', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Aspergillus clavatus', 'role': 'assistant'}]