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: What procedure is part of the cognitive-behavioral intervention program for hypochondria proposed by Warwick and Salkovskis ?:
Options: <1> The systematic desensitization in imagination to extinguish the fear of interoceptive sensations. <2> The stopping of thought to block intrusive thoughts about the disease. <3> The training in mindfulness to reduce the appearance of annoying bodily sensations. <4> The prevention of response to reduce body checking behaviors and search for reassuring information. <5> The resolution of the underlying conflicts related to guilt and dependency needs.
Example Output: 4

Example Input: Question: A 65-year-old man with a history of pancreatic cancer undergoing chemotherapy. Emergency consultation for pain and edema of the entire lower limb from the groin. Which diagnostic test is more cost-effective to confirm the diagnostic suspicion?
Options: <1> Dimer D. <2> Magnetic resonance. <3> Phlebography <4> Venous Doppler ultrasound. <5> Helical CT
Example Output: 4

Example Input: Question: For what purpose is the muscle tension technique applied in the treatment of blood phobia used ?:
Options: <1> As a relaxation technique. <2> To divert the patient's attention from the feared stimulus. <3> To accelerate the habituation process. <4> To reduce vasovagal symptoms. <5> It is used in the first sessions to reduce anticipatory anxiety.
Example Output:
4