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 Q]: Question: Observe that the liquids coming from the synthesis of chloroquine had an antibacterial activity gave rise to the discovery of the quinolones. This group of antibiotics has various characteristics such as: 
 Options:  <1> Fluoroquinolones have a smaller spectrum of activity than first-generation quinolones. <2> The second generation quinolones are very effective against anaerobes. <3> Fluoroquinolones are not effective against enterobacteria. <4> Fluoroquinolones are effective against Gram-positive but less than Gram-negative. <5> The third and fourth generation fluoroquinolones are not effective against streptococci or staphylococci.
[EX A]: 4

[EX Q]: Question: Acetylsalicylic acid is a compound whose pKa is 3.5. What percentage of a dose of this product can be absorbed in the stomach fasting (pH 1.5)? 
 Options:  <1> Less than 10% <2> Between 10% and 20%. <3> More than 90% <4> Between 20% and 40%. <5> 50%
[EX A]: 3

[EX Q]: Question: A person who presents with urine a high [Urea], possibly leads a diet: 
 Options:  <1> Very low in carbohydrates and very high in proteins. <2> Very high in fat and low in protein. <3> Balanced except in carbohydrates. <4> Moderate in carbohydrates and balanced in fats and proteins. <5> Very high in carbohydrates and very low in protein.
[EX A]:
1