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.

Q: Question: Neuraminidase of the influenza virus: 
 Options:  <0> It is found inside the capsid and is released after entering the cell. <1> Its function is to facilitate the encapsulation of genetic material. <2> It is one of the spicules of the envelope. <3> It is not antigenic. <4> It facilitates the adsorption of the virus to the cell.

A: biology
****
Q: Question: The binding of O2 to hemoglobin: 
 Options:  <0> Follow a hyperbolic kinetics. <1> It favors the transition from Fe2 + to Fe3 + in the heme group of the protein. <2> Induces the deprotonation of the protein. <3> It is facilitated in the presence of 2,3bisphosphoglycerate. <4> It is carried out through a covalent interaction with Fe3 +.

A: pharmacology
****
Q: Question: How is the recovery of depression operationalized? (eg, Thase, 2003, APA, 2000): 
 Options:  <0> Reduction of more than 50% of symptoms from the baseline. <1> Reduction of symptoms by more than 75% from the baseline. <2> A score greater than 70 on the Global Activity Assessment Scale (EEAG). <3> Cessation of significant symptoms maintained for at least 6 months and a return to normal functioning. <4> Cessation of significant symptoms for at least the last two months.

A:
psychology
****