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': 'Unsegmented eggs are in which parasite? \nSelect and explain. \nA. Trichuris trichura, B. Ancylostoma, C. Necator americanus, D. Dracunculus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. Trichuris trichura', 'role': 'assistant'}]