Given the task definition and input, reply with output. 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'.

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.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
4