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: The folded sheet β: 
 Options:  <1> It is formed by a single polypetide chain. <2> It presents a distance between adjacent amino acids of approximately 4 ångströms. <3> It is formed by the union of two or more strands by hydrogen bonds. <4> Presents the side chains of contiguous amino acids pointing to the same side. <5> They are of two types: parallel, where the chains of the β sheet go in a different direction and antiparallel, where they go in the same direction.
Example Output: 3

Example Input: Question: In the scheme of the stages of Tanner's pubertal development, the stage or level 5 in women corresponds to: 
 Options:  <1> Light bulge of the breast button and increase of the areolar size. <2> Growth of the breast, presence of light pubic hair and roundness of the hips. <3> Slight mammary protrusion and beginning of roundness of the hips. <4> Full development of the breast and triangle of full pubic hair as in adult women. <5> The beginning of the thelarchy.
Example Output: 4

Example Input: Question: The phase of meiosis where the pairs of homologous chromosomes are aligned along the equatorial plane is called: 
 Options:  <1> Profase I. <2> Metaphase II. <3> Profase II. <4> Metaphase I. <5> Prometaphase I.
Example Output:
4