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: What is the name of the specialty of the History of Nursing that is dedicated to the study of existing care systems in Prehistory? 
 Options:  <1> Paleodermia. <2> Neo-nursing <3> Primo Nursing. <4> Ethno-nursing <5> Meso-nursing
[A]: 1


[Q]: Question: The thromboxanes: 
 Options:  <1> They induce platelet aggregation. <2> They inhibit platelet aggregation. <3> They act as bronchodilators in the respiratory system. <4> They are produced in the membranes of all cells. <5> They are derived from saturated fatty acids.
[A]: 1


[Q]: Question: In the study of proteins. What is the purpose of treatment with β-mercaptoethanol ?: 
 Options:  <1> Hydrolyze the protein. <2> Break the disulfide bridges. <3> Add positive charges. <4> Add negative charges. <5> General an amino acid derivative in Edman degradation.
[A]:
2