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.
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Question: Question: The term that includes the changes of the endometrium during pregnancy is: 
 Options:  <0> Hatching. <1> Apposition. <2> Accession. <3> Invasion. <4> Decidualization.

Answer: biology


Question: Question: Point out which of the following is more clearly a positive symptom of schizophrenia: 
 Options:  <0> The flat or dull affection. <1> The poverty of language. <2> The associability. <3> Hallucinations <4> The bulimia.

Answer: psychology


Question: Question: Patients with liver cirrhosis may have ascites due to: 
 Options:  <0> Alteration of the coagulation factors. <1> Portal hypertension and serum hypoalbuminemia. <2> Decrease in hydrostatic pressure. <3> Irritation of the peritoneal membrane by bile salts. <4> Post-surgical and abdominal trauma.

Answer:
nursery