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: Pathology
[{'content': 'All of the following statements about thrush are true\nEXCEPT \nSelect and explain. \nA. It is caused by a gram-negative fungus, B. It is characterized by a plaque of proliferating epithelial and other cells, C. It is a complication of immunosuppression or systemic disease, D. It can affect neonates in an epidemic fashion', 'role': 'user'}, {'content': 'Answer: A \nExplanation: None', 'role': 'assistant'}]