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 QT interval of the electrocardiogram indicates the duration of: 
 Options:  <1> Atrial contraction <2> Ventricular contraction. <3> Ventricular relaxation <4> Atrial relaxation <5> Delay in the atrioventricular node.
