Instructions: 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: The characteristic of delusions that refers to the maintenance of delirium over time, despite the evidence against is:
Options: <1> The intensity or conviction. <2> The unmodifiable, incorrigibility or fixity. <3> Presence of cultural supports. <4> Concern. <5> Communication deviation.
Output:
2