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.

[EX Q]: Question: Within the main phases of extrusion and spheronization we have: 
 Options:  <0> Dry mix, wet kneading and compaction. <1> Wet kneading, compaction and drying. <2> Wet mixing, compaction, and drying. <3> Wet kneading, drying and sieving. <4> Kneading dry, drying and sieving.
[EX A]: pharmacology

[EX Q]: Question: Agoraphobia is an anxiety disorder that consists of: 
 Options:  <0> An anxiety crisis or panic attacks that usually occur in an unexpected way. <1> An intense and persistent fear of performing public performances. <2> The presence of obsessions or compulsions of a recurring nature that cause great losses of time. <3> An acute mental disorder with a low socioeconomic and health burden. <4> The fear and avoidance of crowded places or situations from which it is difficult to escape.
[EX A]: nursery

[EX Q]: Question: Aspirin is an inhibitor of the synthesis of: 
 Options:  <0> Sterols <1> Prostaglandins <2> Phosphoacylglycerides. <3> Arachidonic acid. <4> Glycerophospholipids.
[EX A]:
pharmacology