Instructions: 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'.
Input: Question: A.C. is hospitalized for presenting a picture of thyrotoxicosis. Which of these measures would you carry out?
Options: <1> Shelter the patient with blankets. <2> Provide hypocaloric diet. <3> Encourage aerobic exercise. <4> Control the frequency and characteristics of the pulse. <5> Administer stool softeners regularly.
Output:
4