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: For self-registration to become an effective tool for clinical evaluation, it must meet the requirements of: 
 Options:  <1> Have a complete design that includes each of the significant units of a complex behavior and its memory. <2> Have a simple design, without sophistication or complexity, and always accompanied by a prior training for its completion. <3> Do not limit your compliance to the events that occurred at the time but also to the memory that you have of them at later moments. <4> Cover each and every one of the behaviors problems identified by the client. <5> Be completed by a significant person who knows the client well.
[EX A]: 2

[EX Q]: Question: A classification of gas chromatography detectors commonly found in the literature divides them into concentration and mass detectors, destructive and non-destructive, integral or differential and universal or selective. According to this classification: 
 Options:  <1> The thermal conductivity detector is a selective detector. <2> The flame ionization detector responds to the concentration of the analyte. <3> The thermal conductivity detector responds to the concentration of the analyte. <4> The phosphorus and nitrogen detector (NPD) is a universal detector. <5> The thermocalorimeter detector is of the differential type.
[EX A]: 3

[EX Q]: Question: The reaction of Wolff-Kishner is one: 
 Options:  <1> Oxidation of carbonyls to give acids. <2> Reduction of carbonyls to alcohols. <3> Deoxygenation of carbonyls that takes place in an acid medium. <4> Deoxygenation of carbonyls that is carried out in an alkaline medium. <5> Carbonyl deoxygenation performed in neutral medium.
[EX A]:
4

