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'.
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Question: Question: The following are zoonotic: 
 Options:  <1> Rotavirus. <2> Paramyxovirus. <3> Cytomegalovirus. <4> Arenavirus. <5> Parvovirus.

Answer: 4


Question: Question: Esters can be obtained from carboxylic acids and alcohols, by applying the Fischer esterification reaction in which: 
 Options:  <1> A base is used as a catalyst. <2> A ketone is used as the solvent. <3> A reducing reagent is used. <4> An oxidizing agent is used. <5> Acid catalysis is used.

Answer: 5


Question: Question: The tissue is avascular: 
 Options:  <1> Epithelial. <2> Conjunctive. <3> Osseous. <4> Muscular. <5> Nervous.

Answer:
1