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: A primary standard solution in a titration should not: 
 Options:  <1> Be prepared from a high purity reagent. <2> Have an exactly known concentration. <3> Keep your composition over time. <4> React instantly. <5> Give rise to secondary reactions.
[EX A]: 5

[EX Q]: Question: What do we mean when a doctor believes firmly in his treatment, even though controlled studies have proven ineffective, the results obtained with it will be better, his patients will be better, and will have more patients? 
 Options:  <1> The opposing process of Solomon. <2> The floor effect. <3> The Asher Paradox <4> The effect of contemplation of Prochaska. <5> The theory of the control door.
[EX A]: 3

[EX Q]: Question: The hypertension developed in hyperaldosteronism is produced by: 
 Options:  <1> Increase in blood calcium. <2> Desensitization of the vascular wall to the vasoconstrictors. <3> Greater release of adrenaline and noradrenaline. <4> Increase in the reabsorption of Na + and H2O. <5> Decrease in blood volume.
[EX A]:
4