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': 'Spherule is a feature of which of the following fungus \nSelect and explain. \nA. Blastomyces, B. Coccidioides, C. Histoplasma, D. Paracoccidioides', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Coccidioides is a dimorphic fungus, it&;s yeast form is spherule, with a thick doubly refractive wall and filled with endospore. Each endospore gives rise to a spherule. Reference: Textbook of Microbiology; Baveja; 4th edition', 'role': 'assistant'}]