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 patient's desire not to be informed:
Options: <1> It is regulated by law only for exceptional cases. <2> It is not regulated in any way by law. <3> The professional obligation is to always inform you, even if you do not want to. <4> It is a right that the law grants to all people. <5> They must be reported to the judicial authority.
Output:
4