This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: parasitology, Subject name: Microbiology
[{'content': 'On microscopic examination eggs are seen, but on saturation with salt solution. No eggs are seen, the eggs are likely to be of - \nSelect and explain. \nA. Trichuris trichura, B. Tenia solium, C. Ascaris lumbricoides, D. Ancylostoma duodenale', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]