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: The deontological code of psychology in Spain is mainly aimed at: 
 Options:  <1> Evaluate the mental health of the therapist. <2> Protect the rights of the authors of the different therapies. <3> Protect the rights of research animals. <4> Protect the rights of research subjects. <5> Regulate applied psychology
Example Output: 5

Example Input: Question: The demographic dynamics of a community is determined by: 
 Options:  <1> Natality <2> Mortality. <3> Immigration. <4> Emigration. <5> All are correct.
Example Output: 5

Example Input: Question: Sulfasalazine is used for the treatment of ulcerative colitis. It is a prodrug of 5-aminosalicylic acid that is activated by a process of: 
 Options:  <1> Hydrolysis of an ester. <2> Hydrolysis of an amide. <3> Oxidative dealkylation. <4> Reducing rupture of the azoderivative. <5> Aromatic hydroxylation.
Example Output:
4