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 optical path partially decimates in: 
 Options:  <1> The optical band. <2> The geniculate body. <3> The optic chiasm <4> The retina. <5> The optical disc.
