MCQOPTIONS
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				| 1. | 
                                    A 4 years old child presents with acute watery diarrhoea and abdominal cramps. Stool microscopy reveals trophozoites with falling leaf motility. The etiological agent is - | 
                            
| A. | Entamoeba histolytica | 
| B. | Giardia lamblia | 
| C. | Trichomonas tenax | 
| D. | Balantidium coli | 
| Answer» C. Trichomonas tenax | |