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: If I can not learn my new phone number because I always see the first three digits of the old one, what is the name of that type of interference? 
 Options:  <1> Proactive <2> Retroactive. <3> Coactive <4> Reactive <5> Protoactive
Example Output: 1

Example Input: Question: Childhood disintegrative disorder is characterized by: 
 Options:  <1> A seemingly normal development during at least the first two years of life. <2> Present only in the female sex. <3> Do not affect the intellectual capacity of people who suffer from it. <4> Does not affect the communication skills of the person. <5> A developmental delay evident from birth.
Example Output: 1

Example 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
Example Output:
4