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: Organomagnesium compounds are commonly referred to as: 
 Options:  <1> Lipshutz <2> Birch. <3> Grignard. <4> Noyori <5> Blanc.
Example Output: 3

Example Input: Question: Naloxone is used in the treatment of poisoning with: 
 Options:  <1> Opiates <2> Benzodiazepines. <3> Barbiturates <4> Tricyclic antidepressants. <5> Digitálicos.
Example Output: 1

Example Input: Question: Which of the following nematodes is a large intestine parasite? 
 Options:  <1> Trichuris trichiura. <2> Ancylostoma duodenale. <3> Trichinella spiralis. <4> Necator americanus. <5> Ascaris lumbricoides.
Example Output:
1