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: Which of the following insulins is used for the basal dose in a diabetic patient?
Options: <1> Lispro. <2> Aspart. <3> Metformin. <4> Glargine <5> Regular.

Answer: 4

Question: Question: Epidemiology allows early detection of changes in the incidence of a certain disease in the population. For this, the most correct thing is to use:
Options: <1> The etiological investigation. <2> The description of the natural history of the disease. <3> Epidemiological surveillance. <4> The evaluation of the functioning of the services. <5> None of the previous answers is correct.

Answer: 3

Question: Question: Voltammetry of anodic redissolution:
Options: <1> It is always carried out with mercury film electrodes. <2> It uses an oxidation process with chemical agents. <3> It is based on the formation of mercury salts in the electrode. <4> It does not need background electrolyte. <5> It has an electrodeposition stage.

Answer:
5