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: Cardiac output decreases the increase of: 
 Options:  <1> The volemia. <2> The venous return. <3> Vagal activity. <4> The end-diastolic volume. <5> The myocardial contractility.
