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'.

Input: Consider Input: Question: Point out the correct answer regarding the regulation of hematopoiesis: 
 Options:  <1> Altitude inhibits hematopoiesis. <2> Erythropoietin inhibits hematopoiesis. <3> Hypoxia stimulates the production of erythropoietin. <4> Erythropoietin is synthesized in the liver. <5> Erythropoietin does not influence the production of red blood cells.

Output: 3


Input: Consider 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.

Output: 4


Input: Consider Input: Question: What is the model of psychological evaluation whose basic assumption is that abnormal behavior is associated with endogenous or internal factors, whether biological or intrapsychic, whose object of study is the symptom, which will allow us to build syndromes and subsequently be able to apply a treatment? 
 Options:  <1> The Behavior model. <2> The model of the Attribute. <3> The Clinical-dynamic model, Psychoanalytical perspective. <4> The Clinical-dynamic model, Medical-Psychiatric perspective. <5> The Constructivist model.


Output: 4