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: 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: Streptococcus sobrinus and Streptococcus mutants are responsible for: 
 Options:  <1> Dental cavities. <2> Burns infections. <3> Rheumatic fever <4> Atypical rhinitis. <5> Otitis stockings.
Example Output: 1

Example Input: Question: Which vector would be used to clone a DNA fragment up to 15 Kb ?: 
 Options:  <1> BAC. <2> Plasmid <3> Cosmic <4> YAK. <5> Phage
Example Output:
2