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: Sodium borohydride is a reagent used in Organic Chemistry for its properties such as: 
 Options:  <1> Reducer. <2> Oxidizer <3> Alkylator <4> Acid. <5> Organometallic.

Answer: 1


Question: Question: The type of epidemiological study indicated to evaluate, in a population initially exempt from the health problem under study, the association between a risk factor and the onset of the disease is: 
 Options:  <1> Randomized clinical trial. <2> Quasi experimental. <3> Ecological studies <4> Cases and controls study. <5> Cohort study.

Answer: 3


Question: Question: Inhibits the integrase of HIV the: 
 Options:  <1> Efavirenz. <2> Tenofovir <3> Ritonavir <4> Emtricitabine. <5> Raltegravir

Answer:
5


