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: People affected by chronic heart failure usually present the diagnosis of nursing Intolerance to activity related to: 
 Options:  <1> Fear, because it is a situation that poses a potential risk to life. <2> Imbalance between the supply and oxygen demand due to the decrease in myocardial contractility. <3> Excess fluid volume due to interruption of blood flow. <4> Poor knowledge about the disease and treatment with diuretics. <5> Infection due to decreased immune response.
Example Output: 2

Example Input: Question: The tRNA-aminoacyl-transferases: 
 Options:  <1> They link the amino acid to the ribosome. <2> They bind the amino acid to the anticodon of the tRNA. <3> They are RNA polymerases. <4> They guarantee the fidelity of the translation. <5> They are not important in the translation.
Example Output: 4

Example Input: Question: A non-immunogenic low molecular weight molecule, which is when coupled to an antigenic carrier protein, is a: 
 Options:  <1> Glycoconjugate. <2> Paratope <3> Isotype. <4> Epitope. <5> Hapteno.
Example Output:
5