instruction:
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'.
question:
Question: The polymerase chain reaction (PCR) encompasses three processes. Select sequence order: 
 Options:  <1> Extension → Fusion → Denaturation. <2> Fusion → Denaturing → Extension. <3> Denaturing → Fusion → Extension. <4> Denaturing → Extension → Fusion. <5> Extension → Denaturation → Fusion.
answer:
3


question:
Question: The following are zoonotic: 
 Options:  <1> Rotavirus. <2> Paramyxovirus. <3> Cytomegalovirus. <4> Arenavirus. <5> Parvovirus.
answer:
4


question:
Question: Systematic training for the redirection of attention to aspects or positive external stimuli to counteract the excess of self-consciousness, is part of the psychological treatment protocols especially for: 
 Options:  <1> Obsessive-compulsive disorder <2> The agoraphobia. <3> Anxiety disorder (panic disorder). <4> Social phobia <5> Post-traumatic stress disorder
answer:

4