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'.

Example Input: Question: A 65-year-old man, smoker and diabetic, is brought to the Emergency Department for presenting an oppressive, deep-throating sweat for about an hour. In the ECG performed, sinus rhythm was observed at 80 bpm and a complete block of the left branch. What should our attitude be? 
 Options:  <1> Perform an analytical determination of troponin and wait for its result to confirm the presence of an acute myocardial infarction. <2> Treat the patient as if it were an infarction with ST-segment elevation, proposing a reperfusion therapy as early as possible. <3> To implant a transcutaneous pacemaker before the possibility of developing a more advanced block. <4> Perform an urgent CT to rule out the presence of an acute pulmonary embolism. <5> As it could be an acute pericarditis, we will administer NSAIDs.
Example Output: 2

Example Input: 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
Example Output: 1

Example Input: Question: The loss of MHC class I makes the cells susceptible to lysis by: 
 Options:  <1> NK lymphocytes. <2> Tc lymphocytes. <3> Macrophages <4> Th lymphocytes <5> Complement.
Example Output:
1