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: Unknown
[{'content': 'H. capsulatum, is found in soil heavily contaminated with bird droppings. Which of the following statements best describes the presence of the organism in tissue biopsies? \nSelect and explain. \nA. Arthrospores, B. Oval budding yeast inside macrophages, C. Single-cell yeast with pseudohyphae, D. Spherules containing endoscopores', 'role': 'user'}, {'content': 'Answer: B \nExplanation: H. capsulatum is a dimorphic fungus that forms two types of spores: tuberculate macroconidia and microconidia. Inhalation of the microconidia transmits infection. Inhaled spores (microconidia) are engulfed by macrophages and develop into yeast forms. Most infections remain asymptomatic; small granulomatous foci heal by calcification. However, pneumonia can Occur. The heterophile anti body test is useful for early diagnosis of infectious mononucleosis.', 'role': 'assistant'}]