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: Affective lability is characterized because: 
 Options:  <1> Rapid changes in emotion occur and the person has difficulty controlling their emotions. <2> There is an elevation of the attentional affective threshold for negative stimuli. <3> There is a general feeling of being very well, very happy, although there are no causes that justify that state of mind. <4> The mood is predominantly downcast, pessimistic, sad. <5> There is an affective narrowing that restricts the emotional life.
Example Output: 1

Example Input: Question: The main method for the preparation of βceto esters is the reaction known as: 
 Options:  <1> Malonic synthesis <2> Acetoacetic synthesis. <3> Condensing of Claisen. <4> Perkin reaction. <5> Hofmann reaction.
Example Output: 3

Example Input: Question: In a hospitalization unit, 15% of elderly people with dementia enter the year, most of them in very advanced stages. Pain is a frequent symptom in this type of patients. Point out the correct answer in patients with very advanced dementia: 
 Options:  <1> Untreated pain may manifest by agitation. <2> The Analog Visual Scale is the most appropriate for the assessment of pain due to its simplicity. <3> One-dimensional subjective scales are those recommended by experts to assess pain. <4> There are no specifically available scales designed to assess pain. <5> The administration of opioids for pain control is discouraged.
Example Output:
1