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': 'In tissue, Coccidioides immitis produces \nSelect and explain. \nA. Spherules and endospores, B. Encapsulated yeast cells, C. Fine, delicate hyphae, D. Coarse, septate hyphae', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Coccidioides immitis is a dimorphic fungus. Yeast form is a spherule filled with endospores. Mycelial phase contains pseudohyphae, which fragments into ahrospores. Ref: Textbook of Microbiology, Ananthanarayan and Paniker; 9th edition', 'role': 'assistant'}]