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: Separations by capillary zone electropheresis (CZE) are characterized in that the electrophoretic medium:
Options: <1> It is always formed by 1.0 M HCl. <2> It is always formed by NH3 1.0 M. <3> It is homogeneous throughout the capillary. <4> It is not homogeneous throughout the capillary. <5> It has a pH gradient throughout the entire capillary.
Example Output: 3

Example Input: Question: The folded sheet :
Options: <1> It is formed by a single polypetide chain. <2> It presents a distance between adjacent amino acids of approximately 4 angstroms. <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 sheet go in a different direction and antiparallel, where they go in the same direction.
Example Output: 3

Example Input: Question: In a Gram positive pathogen involved in pharyngitis and rheumatic fever:
Options: <1> Staphylococcus aureus. <2> Micrococcus luteus. <3> Moraxella catarrhalis. <4> Haemophilus influenzae. <5> Streptococcus pyogenes.
Example Output:
5