This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: miscellaneous, Subject name: Microbiology
[{'content': 'A 10-year-old child presents with diarrhea and abdominal pain since 4 days. Stool microscopy was done and is shown below. Which of the following can be used for the treatment? \nSelect and explain. \nA. Mebendazole, B. Ivermectin, C. Diethylcarbamazine, D. Praziquantel', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The given clinical history and the stool microscopy showing the egg are suggestive of infection with Hymenolepis nana. It is treated by Praziquantel. Characteristics of Hymenolepis nana eggs: Colorless, non-bile stained Possesses a single shell with an operculum at one end and a knob at the other end. Reference: Paniker&;s Textbook of Medical Parasitology 8th edition', 'role': 'assistant'}]