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: Microbiology
[{'content': 'Brucellosis can be transmitted by all of the following modes, except- \nSelect and explain. \nA. Contact with infected placenta, B. Ingestion of raw vegetables from infected forms, C. Person to person transmission, D. Inhalation of infected dust or aerosol', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Person to person transmission", 'role': 'assistant'}]