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: The main mediators of the antibody-dependent cellular cytotoxicdiad are: 
 Options:  <0> The eosinophils. <1> The NK lymphocytes. <2> The mast cells <3> The neutrophils. <4> The CD8 + lymphocytes.

A: biology
****
Q: 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.

A: psychology
****
Q: Question: The antiviral tamiflu that is used against the bird flu virus acts: 
 Options:  <0> Inhibiting viral neuraminidase. <1> Inactivating the viral protease responsible for the processing of capsomere precursors. <2> Preventing the decapsidation of viral particles. <3> Blocking the interaction of viral particles with their cellular receptor. <4> Altering the activity of the viral DNA polymerase.

A:
biology
****