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: 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: Importin intervenes in the transport of proteins from the cytoplasm to: 
 Options:  <1> Nucleus. <2> Endoplasmic reticulum. <3> Mitochondria. <4> Peroxisome <5> Lysosome

Ex Output:
1


Ex Input:
Question: Fructose-1,6-bisphosphatase: 
 Options:  <1> It is inhibited by citrate. <2> It is activated by the AMP. <3> Releases a phosphate like Pi. <4> It is a mitochondrial enzyme. <5> It catalyzes a reversible reaction.

Ex Output:

3