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: Question linked to image nº15 A 67-year-old patient who reported a decrease in unilateral visual acuity and rapidly evolving metamorphopsia. The attached retinography presents the image of the affected eye. The most likely diagnosis would be: 
 Options:  <1> Macular degeneration associated with exudative age. <2> Retinal detachment. <3> Retinitis pigmentosa <4> Central vein thrombosis of the ischemic retina. <5> Equatorial choroidal melanoma.
Example Output: 1

Example Input: Question: For which disorder is the technique of fading stimulated frequently used? 
 Options:  <1> Enuresis <2> The selective mutism. <3> Childhood asthma <4> Posttraumatic stress disorder secondary to sexual abuse. <5> The encopresis.
Example Output: 2

Example Input: Question: Activates the renin-angiotensin aldosterone system an increase in: 
 Options:  <1> Blood pressure. <2> Parasympathetic activity <3> Concentration of Ca2 + in plasma. <4> Na + concentration in plasma. <5> Sympathetic activity
Example Output:
5