You will be given a definition of a task first, then some input of the task.
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: According to the results studies, when the Exposure technique is being applied, it must be taken into account that massive and prolonged exposure produces:
Options: <1> Worst immediate results than spaced exposure. <2> Better immediate results than exposure spaced. <3> There are no differences in results regarding the type of exposure. <4> Worst immediate results if done in more than a day. <5> Best immediate results only in patients with depression.
Output:
2