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': 'Which of the following produces bile stained eggs? \nSelect and explain. \nA. Ancylostoma duodenale, B. Ascaris, C. Enterobius vermicularis, D. Necator americans', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. is \'b\' i.e., Ascaris Eggs of HelminthsNon-bile stainedBile stainedAnkylostoma duodenaleHymenolepsis nonaEnterobius vermicularisNector AmericansMnemonic: "A HEN"Trichuris trichuraAscaris lumbricoidesTaenia saginataTaenia soliumMnemonic : "TATT"', 'role': 'assistant'}]