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 patient with an internal arteriovenous fistula in the left arm will recommend:
Options: <1> Put on a compressive bandage for protection. <2> Perform elbow flexion and extension exercises to activate their maturation. <3> Feel the fistula daily to check that it works. <4> Clean the surrounding skin with an antiseptic every day. <5> Lift weight with that hand to achieve vascular remodeling.
Output:
3