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': 'The ovoviviparous nematode is - \nSelect and explain. \nA. Ascaris lumbricoides, B. Dracunculus medinensis, C. Strongyloides stercoralis, D. Enterobius vermicularis', 'role': 'user'}, {'content': 'Answer: C \nExplanation: None', 'role': 'assistant'}]