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'.

Ex Input:
Question: Which of the following antifungals is used in the treatment of invasive aspergillosis and severe candidiasis including Candida krusei and Candida glabrata ?: 
 Options:  <1> Voriconazole <2> Miconazole <3> Ketoconazole <4> Fluconazole <5> 1 and 3 are correct.

Ex Output:
1


Ex Input:
Question: The organometallic compounds are derivatives: 
 Options:  <1> With a radical nature. <2> With covalent bonds between carbon atoms and metal atoms. <3> With electronic deficit and electrophilic character. <4> Practically not reactive. <5> With essentially reducing character.

Ex Output:
2


Ex Input:
Question: Regal water dissolves gold because of its two components: 
 Options:  <1> Sulfuric acid acts as an oxidant and hydrochloric acid forms a soluble chlorinated complex of Au3 +. <2> Hydrochloric acid increases the oxidizing power of nitric acid. <3> Nitric acid acts as an oxidant and hydrochloric acid forms a soluble chlorine complex of Au3 +. <4> Hydrochloric acid acts as an oxidant and nitric acid forms a soluble complex of Au3 +. <5> Nitric acid acts as an oxidant and hydrochloric acid forms a soluble chlorinated complex of Au2 +.

Ex Output:

3