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: Ophthalmology
[{'content': 'Which of the following organism produce corneal ulcer resembling fungal ulcers? \nSelect and explain. \nA. Klebsiella species, B. Mycobacteria, C. Nocardia asteroides, D. Chlamydia', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ulcer caused by\xa0Nocardia asteroides can present with satellite lesions and is associated with trauma.', 'role': 'assistant'}]