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: 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

Example Input: Question: When the individual is unable to remember important personal information, usually a traumatic or stressful event, what disorder can we think of, within the group of dissociative disorders (DSM-IV-TR)? 
 Options:  <1> Dissociative identity disorder. <2> Dissociative trance disorder. <3> The generalized amnesia. <4> The dissociative amnesia. <5> The dissociative leak
Example Output: 4

Example Input: Question: Which of the following statements about aging corresponds to the psychosocial approach known as Theory of Continuity? 
 Options:  <1> Well-being in old age depends on newly acquired roles. <2> Aging successfully is related to the number of activities that are carried out. <3> As you get older it is necessary to voluntarily abandon certain activities. <4> Aging in a healthy way implies not dissociating from social roles. <5> The level of activity in old age is a function of the person's life trajectory.
Example Output:
5