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 reactivity of various carbonyl groups is determined by their relative stability. The order of reactivity towards nucleophiles is: 
 Options:  <0> Amides> Esters> Ketones> Aldehydes. <1> Aldehydes> Ketones> Esters> Amides. <2> Amides> Ketones> Aldehydes> Esters. <3> Aldehydes> Esters> Ketones> Amides. <4> Amides> Ketones> Esters> Aldehydes.

A: chemistry
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Q: Question: The following are zoonotic: 
 Options:  <0> Rotavirus. <1> Paramyxovirus. <2> Cytomegalovirus. <3> Arenavirus. <4> Parvovirus.

A: biology
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Q: Question: A 4-year-old boy with no history of vaccination against rabies is attacked spontaneously by a dog, causing numerous injuries to the neck and limbs that were unprotected. The animal flees and it is not possible to locate it. What is the initial attitude to follow with the patient to prevent a possible transmission of rabies? 
 Options:  <0> Administer specific antivirals against the rabies virus. <1> Administer the rabies vaccine. <2> Administer the vaccine plus anti-rabies immunoglobulin. <3> Administer anti-rabies immunoglobulin. <4> Administer the vaccine, more immunoglobulin, more antivirals.

A:
pharmacology
****