Q: In this task, you are given a question and answer options for that question. Using this information, you have to classify each text into different topics: medicine, nursery, psychology, chemistry, pharmacology, biology.
Question: The interruption of the naso-oral airflow accompanied by muscular respiratory efforts that are not sufficient to open the upper airways, constitutes:
Options: <0> The main side effect of electroshock. <1> A symptom of the heroin withdrawal syndrome. <2> An effect of the amnestic syndrome. <3> The apneic episode <4> The acute phase of social phobia.
A:
psychology