This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Medicine
[{'content': '"Fleeting pulmonary infiltrates" on sequential chest skiagrams in an individual who suffers from asthma are characteristics of- \nSelect and explain. \nA. Allergic bronchopulmonary aspergillosis, B. Mycobacteriurn tuberculosis infection, C. Pneumocystis jirovecii pneumonia, D. Nocardia infecation', 'role': 'user'}, {'content': "Answer: A \nExplanation: Allergic bronchopulmonary aspergillosis is an eosinophilic pneumonia characterised by peripheral blood eosinophilia(>1000/microL)and migratory pulmonary infiltrates in chest Xray.It is usually associated with bronchial asthma.There will be elevated IgE class antibodies specific for A.fumigatus. Reference:Harrison' s medicine-18th edition,page no:2120.", 'role': 'assistant'}]