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: The transmembrane proteins that bind to intracellular and extracellular proteins are: 
 Options:  <1> Ocludines. <2> Cadherins. <3> Actins. <4> Integrins <5> Desmocolinas.
[EX A]: 4

[EX Q]: Question: The standard free energy of activation of a reaction is: 
 Options:  <1> The difference in free energy between the basal state of the products and the substrates. <2> The difference of the enthalpy minus the entropy of the system. <3> The basal energy of the substrates in a catalyzed reaction. <4> The additional free energy that molecules must reach to reach the state of transition. <5> The energy released from a catalysed reaction.
[EX A]: 4

[EX Q]: Question: The main utility of behavioral experiments in the treatment of panic disorder is: 
 Options:  <1> Exemplify the psychoeducational content. <2> Facilitate the acceptance of the treatment. <3> Test dysfunctional beliefs about the consequences of certain bodily sensations. <4> Demonstrate that the anxiety experienced by the patient in situations is lower than anticipated. <5> Model the applied practice of relaxation.
[EX A]:
3