Definition: 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: Point out which of the following is more clearly a positive symptom of schizophrenia: 
 Options:  <1> The flat or dull affection. <2> The poverty of language. <3> The associability. <4> Hallucinations <5> The bulimia.
