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': 'Barrel shaped eggs is/are seen in - \nSelect and explain. \nA. Hookworm, B. Pin worm, C. Roundworm, D. Whipworn', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Ans. is \'d\' i.e., Whipworm [Ref Rajesh karykae 1"/e p. 1661Eggs of Trichuris-trichura (whipworm) are barrel-shaped with mucous plug at each pole. Shell is yellow to brow (bile-stained) and plugs are colourless. They float in saturated solution of common salt. When freshly passed, they contain unsegmented ova and are not infective to man.', 'role': 'assistant'}]