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: The square of Pearson's correlation coefficient is: 
 Options:  <1> The coefficient of variation. <2> The coefficient of determination. <3> The slope of the regression line. <4> The regression coefficient. <5> The covariance.
Example Output: 2

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: The conception of the person from a holistic perspective has achieved all its meaning from the works belonging to the School: 
 Options:  <1> Of the caring. <2> Of health promotion. <3> Of the desired effects. <4> Integrality <5> Of the unitary human being.
Example Output:
5