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: Consider Input: Question: The Nernst equation: 
 Options:  <1> It is true both for reversible and highly irreversible galvanic cells. <2> It allows to calculate the electromotive force of a galvanic cell with only knowing the Gibbs energy standard of the chemical reaction of the cell. <3> It depends solely on the activities of the species that participate in the chemical reaction of the cell. <4> It relates the electromotive force of the cell with the activities of the species that participate in the chemical reaction of the cell and with the standard potential of the reaction. <5> It is independent of the number of electrons transferred in the electrochemical reaction of the cell

Output: 4


Input: Consider 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.

Output: 2


Input: Consider Input: Question: When the manganese is oxidized in the air at 1000 ºC it is completely transformed into Mn3O4. This is because: 
 Options:  <1> Mn3O4 is the most volatile of all manganese oxides. <2> Mn3O4 can no longer react with oxygen. <3> There are no manganese oxides with a higher oxidation state. <4> Mn3O4 is the most stable of all manganese oxides. <5> Mn3O4 forms a protective layer that stops oxidation of the metal.


Output: 4


