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: ENT
[{'content': 'All of the following are diagnostic criteria of allergic Fungal sinusitis (AFS) Except - \nSelect and explain. \nA. Areas of High attuenuation on CT scan, B. Orbital invasion, C. Allergic epsinophilic mucin, D. Type 1 Hypersensitivity', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Allergic fungal sinusitis is a noninvasive form of fungal sinusitis as such orbital invasion is not its feature.', 'role': 'assistant'}]