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'.

Q: Question: In relation to the hearing and balance processes, indicate which statement is correct: 
 Options:  <1> The sounds are perceived in the organ of Corti and the balance in ampullary crests and maculae. <2> The auditory signal is processed in the cerebellum. <3> The inner ear is full of air. <4> Otoliths are composed of quartz. <5> All answers are false.

A: 1
****
Q: Question: According to the phenomenon of social facilitation when a person develops a task poorly learned in the presence of others, the execution of said task: 
 Options:  <1> It improves slightly. <2> It improves substantively. <3> It does not change. <4> Gets worse. <5> It is not predictable.

A: 4
****
Q: Question: They are essential for blood coagulation: 
 Options:  <1> Red blood cells. <2> White blood cells <3> Platelets. <4> The lymph. <5> Serum glucose

A:
3
****