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 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: The process of bacterial sporulation occurs: 
 Options:  <1> Both Gram positive and Gram negative bacteria. <2> After the depletion of certain essential nutrients. <3> When unfavorable environmental factors such as UV light or heat appear. <4> During the exponential growth. <5> By budding of a stem cell.

Answer: 2


Question: Question: According to the Biopharmaceutical Classification System, a drug that has low permeability and high solubility, such as cimetidine, is a drug of: 
 Options:  <1> Class I. <2> Class II <3> Class III <4> Class IV. <5> Class V.

Answer:
3