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'.

Input: Consider Input: Question: Which of the following staining techniques is important in the diagnosis of infections caused by Corynebacterium diphtheriae? 
 Options:  <1> The capsule staining. <2> Staining of metachromatic granules. <3> The acid-alcohol resistance stain. <4> Negative staining <5> The staining of endospores.

Output: 2


Input: Consider Input: Question: As an immunoanalytical technique, flow cytometry is mainly based on the detection of signals: 
 Options:  <1> Chemiluminescent <2> Fluorescent <3> Bioluminescent <4> Piezoelectric. <5> Magnetic

Output: 2


Input: Consider Input: Question: Sumatriptan is a first generation anti-migrant triptan, structurally characterized by having a heterocycle: 
 Options:  <1> Imidazoic <2> Piperidinic <3> Indic. <4> Pirrólico. <5> Oxazolic.


Output: 3