A 7 year old presented with intermittent abdominal cramps, loose stool and on stool examination eggs of size 100 m are seen, which is not the cause ?: (A) Fasciola gigantica, (B) Echinostoma iliocanum, (C) Gastrodiscoides hominis, (D) Opisthorcis viverni
Answer is D. Ans. is. 'd' i.e., Opisthorcis viverni Eggs of Opisthorcis viverni have size very much less than 100 m