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 Müller cells of the retina are: 
 Options:  <1> Modified neurons. <2> Glandular <3> Neurogliales of support. <4> Of the microglia. <5> Of the pigmentary layer.
