Definition: 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 teenager with obsessive-compulsive disorder phones the Toxicological Information Service to ask if he can safely use an insecticide for cockroaches. What is the name of this escape behavior? 
 Options:  <1> Ascertainment. <2> Rationalization. <3> Reinsurance. <4> Ritualization <5> Testing.
