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'.

Example Input: Question: Which of the following moments of the electrocardiogram corresponds to the depolarization stage of the ventricular myocardium ?: 
 Options:  <1> Onda P. <2> Onda T. <3> Segment T-P. <4> Segment P-Q. <5> QRS wave.
Example Output: 5

Example Input: Question: The generation of the cold vapor is a form of introduction of the sample for the atomization that is used in atomic absorption spectrometry (EAA) to analyze: 
 Options:  <1> Lead and Arsenic. <2> Mercury. <3> Elements that have a low vapor pressure at room temperature. <4> Halogens of high molecular weight. <5> Alcalinotérreos.
Example Output: 2

Example Input: Question: Fibrinogen is activated by: 
 Options:  <1> Platelet stopper <2> Plasmina. <3> Thrombin <4> Thromboplastin. <5> Factor von Willebrand.
Example Output:
3