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': 'Amoebic liver abscess can be diagnosed by demonstrating- \nSelect and explain. \nA. Cysts in the sterile pus, B. Trophozoites in the pus, C. Cysts in the intestine, D. Trophozoites in the feces', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Trophozoites in the pus", 'role': 'assistant'}]