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 presence of nonspecific prodromes in a psychotic disorder:
Options: <1> It refers to one of the three phases in which a psychotic episode evolves. <2> It refers to the acute phase. <3> It refers to the recovery phase. <4> It defines the abrupt onset of the first psychotic episode. <5> It is a phase in which the patient does not need treatment.
Output:
1