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 microbiocidal action of iodine and chlorine and many of its derivatives is due to:
Options: <1> They are oxidizing agents. <2> They bind specifically to the active centers of the enzymes. <3> They bind specifically to ribosomal proteins. <4> They induce pores in the membranes. <5> They cause the dissolution of membrane phospholipids.
Example Output: 1

Example Input: Question: The vector of tularemia is a / a:
Options: <1> Coleoptera. <2> Louse. <3> Flea. <4> Tick. <5> Mosquito.
Example Output: 4

Example Input: Question: What root predominantly depends on the sensory innervation of the first toe?
Options: <1> L3. <2> L4. <3> L5 <4> S1 <5> L2.
Example Output:
3