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: A biosensor consists of: 
 Options:  <1> A receiver, a transducer, and an enzymatic brand. <2> A receptor and an enzymatic brand. <3> A transducer and an enzymatic brand. <4> A receiver and a transducer. <5> A receptor and an antibody.

Ex Output:
4


Ex Input:
Question: For a patient with an acute episode of gout, the nurse should recommend: 
 Options:  <1> Avoid foods rich in fat and calories. <2> Apply ice packs to reduce joint pain. <3> Perform daily exercise. <4> Avoid the intake of foods rich in purines. <5> Periodically check the blood count and the white blood cell count.

Ex Output:

4