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: Reactivity is considered a source of error when using Observation as a method of obtaining information. Where does it come from?
Options: <1> From the context in which the Observation is generated. <2> Of the observed subject. <3> Of the chosen procedure. <4> From the observer. <5> Of the type of instrument chosen.
Example Output: 2

Example Input: Question: According to the article 15 of the Law of Prevention of Labor Risks, it is NOT considered a principle in the preventive activity:
Options: <1> Avoid the risks and fight them from their origin. <2> Adapt the job to the person. <3> Adopt measures that put individual protection before collective protection. <4> Substitute the dangerous for what it means little or no danger. <5> Training of workers
Example Output: 3

Example Input: Question: A colonoscopy of colorectal cancer screening is performed on a patient with ulcerative colitis with involvement up to the transverse colon. Colonoscopy shows no signs of inflammatory activity. Multiple biopsies were performed every 10 cm. The biopsies were reviewed by 2 expert pathologists demonstrating a focus of high grade dysplasia in one of the biopsies performed in the sigmoid colon. What would you indicate next?
Options: <1> Repeat the colonoscopy to confirm the diagnosis. <2> Intensive surveillance with colonoscopy every 3 to 6 months. <3> Repeat the examination and perform a chromoendoscopy to identify the lesion and perform an endoscopic mucosectomy. <4> Total proctocolectomy. <5> Treatment with mesalazine at doses of 2-3 grams per day and repeat the scan at 3 to 6 months.
Example Output:
4