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: Consider Input: Question: When performing a central peripheral insertion venous catheterization procedure, the nurse must take into account that: 
 Options:  <1> The catheter is ready for use immediately after insertion, not needing further checks. <2> It is vital to perform a chest X-ray and / or an electrocardiographic record prior to its use. <3> A complete electrocardiogram should be performed in order to avoid possible complications. <4> The location of the tip of the catheter is only checked if parenteral nutrition is to be administered through it. <5> You need to check your position using a chest x-ray and another abdomen.

Output: 2


Input: Consider Input: Question: The set of means and systems that facilitate the contact of the infectious agent with the recipient subject corresponds to: 
 Options:  <1> Source of infection. <2> Habitat. <3> Transmission mechanism. <4> Biotope <5> Reservoir.

Output: 3


Input: Consider Input: Question: Which of the following criteria is a predictor of long-term success in exposure therapy to phobic disorders ?: 
 Options:  <1> Let the intensity of fear be intermittent. <2> That the phobia is of recent appearance. <3> That improvement occurs after the first exhibitions. <4> That there is previous experience of psychological treatment. <5> Let the patient be aware of the irravability of their fears.


Output: 3