Definition: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: The eggs are operculated: 
 Options:  <1> Hymenolepis nana. <2> Trichinella spiralis. <3> Enterobius vermicularis. <4> Fasciola hepatica. <5> Ascaris lumbricoides.
