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: Which of the following moments of the electrocardiogram corresponds to the depolarization stage of the ventricular myocardium ?: 
 Options:  <1> Onda P. <2> Onda T. <3> Segment T-P. <4> Segment P-Q. <5> QRS wave.
[EX A]: 5

[EX Q]: Question: Which of the following hepatitis viruses is a subsidiary of treatment with viral protease inhibitors? 
 Options:  <1> The hepatitis C virus <2> The hepatitis B virus <3> The hepatitis A virus <4> The hepatitis E virus <5> The TTV virus.
[EX A]: 1

[EX Q]: Question: Primary amines give condensation reactions with aldehydes and ketones producing: 
 Options:  <1> Iminas. <2> Enaminas <3> Amides <4> Hydrazines <5> Purines.
[EX A]:
1