Task: Question Answering
Input (English): 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.
Output (English): 4