Task: Question Answering
Input (English): Question: In the pharmacological treatment of hallucinations and delusions, what is the correct answer? 
 Options:  <1> Between 30-50% of people with psychosis treated with antipsychotics continue to experience difficulties derived from clinical symptoms. <2> Antipsychotics act on the positive symptoms of psychosis, but mainly eliminate the negative symptoms. <3> The extrapyramidal side effects they cause are intractable. <4> When an antipsychotic does not improve symptoms, changing the treatment is not advisable. <5> It is advisable not to combine it with psychological treatment until the psychotic symptoms have disappeared.
Output (English): 1