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: Which of the following is considered a normal response of the cardiovascular system originated in the baroreceptors as a consequence of hypotension ?: 
 Options:  <1> Increase in systemic vascular resistance. <2> Increase in parasympathetic stimulation. <3> Decrease in heart rate <4> Decreased stroke volume. <5> Decrease in cardiac output

Ex Output:
1


Ex Input:
Question: The proteasome: 
 Options:  <1> It is formed by 21 homologous subunits organized in 3 rings. <2> It is a protein complex that catalyzes the hydrolysis of ubiquitinated proteins. <3> It is found only in animal eukaryotic cells. <4> Digest acylated proteins. <5> It is activated by a drug, bertezomil, in therapy for multiple myeloma.

Ex Output:
2


Ex Input:
Question: When the person only observes the behavior of the model and learns its behavior or patterns of action, without reproducing it during the training session, what type of modeling is it? 
 Options:  <1> Modeling in vivo. <2> Participant modeling <3> Symbolic modeling <4> Passive modeling <5> Modeling self-instructions.

Ex Output:

4