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 cells of the stomach that are responsible for the secretion of hydrochloric acid are: 
 Options:  <1> The main cells. <2> The G cells <3> The parietal cells. <4> The enterocytes. <5> The mucosites of surface.
