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 Input:
Question: What element plays a physiological role in the prevention of gastroesophageal reflux? 
 Options:  <1> Upper esophageal sphincter <2> Angle of His. <3> Hernia of Hiato. <4> Purkinje angle. <5> Pyloric sphincter

Ex Output:
2


Ex Input:
Question: With what scope is the Theory of the Melzack Gate and Wall related ?: 
 Options:  <1> Cancer. <2> HIV infection <3> Renal problems. <4> Pain. <5> Cardiovascular disorders

Ex Output:
4


Ex Input:
Question: The utility value corresponding to a state of health, which can be used later in a cost-utility study, generally has a value: 
 Options:  <1> Between 0 and 1. <2> Between 0 and 10 <3> Between 0 and 100. <4> Between -10 and +10. <5> Between -100 and +100.

Ex Output:

1