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'.
--------
Question: 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.

Answer: 4


Question: Question: Nitric oxide: 
 Options:  <1> It is synthesized from methionine. <2> Activates cAMP-dependent protein kinase (PKA). <3> It binds to receptors coupled to G proteins (GPCR). <4> Induces relaxation of the vascular endothelium. <5> It binds to receptors with protein tyrosine kinase (PTK) activity.

Answer: 4


Question: Question: The exergonic reactions of metabolism: 
 Options:  <1> Consume free energy. <2> They are thermodynamically favorable. <3> They are always quick reactions. <4> They do not require the action of enzymes. <5> They have high values ​​of activation energy.

Answer:
2