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 cystic form of all are seen in man except ? \nSelect and explain. \nA. E.histolytica, B. Giardia, C. Trichomonas, D. Toxoplasma', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Trichomonas Protozoal parasites have two phases. Cystic phase Trophozoite Cystic phase is not seen in : Trichomonas Entamoeba gingivalis Dientamoeba fragilis", 'role': 'assistant'}]