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'.

Ex Input:
Question: It has been proven that amphetamines have reinforcing effects because: 
 Options:  <1> They are GABAergic agonists. <2> They are dopaminergic antagonists. <3> They are serotonergic antagonists. <4> They are dopaminergic agonists. <5> They are serotonergic agonists.

Ex Output:
4


Ex Input:
Question: The diagnostic sensitivity of an analytical magnitude for a certain disease is: 
 Options:  <1> 1 / specificity. <2> It depends on the prevalence of the disease. <3> It is the number of patients that give positive results among all possible individuals. <4> It is the quotient between the number of patients who give positive results for this magnitude and the total number of patients considered. <5> It is deducted directly from the minimum detectable value of this magnitude.

Ex Output:
4


Ex Input:
Question: A person who does not have schizophrenia, or a mood disorder with psychotic symptoms, but who exhibits a deep pattern of social detachment and a limited range of emotional expression in interpersonal situations (eg, enjoyment with few activities or is indifferent to the praise or criticism), presents more likely: 
 Options:  <1> A delusional disorder <2> A social phobia <3> A schizoid personality disorder. <4> A disorder of depersonalization. <5> A Korsakoff syndrome.

Ex Output:

3