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: The prodromal phase of a psychotic episode is characterized by:
Options: <1> A deviation from emotional, cognitive, behavioral or social functioning and the presence of nonspecific symptoms. <2> Being a critical period during which the person should be treated. <3> The appearance of the first psychotic episode. <4> Be comparable to what is called the duration of untreated psychosis. <5> The functional recovery of the patient, which causes that it can be incorporated into working life gradually.
Output:
1