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: During ventricular systole: 
 Options:  <1> All ventricular blood is expelled. <2> Intraventricular pressure is equal in both ventricles. <3> The ventricular volume begins to decrease from the beginning of the contraction. <4> The atrio-ventricular valves are open. <5> The atria are relaxed.
