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: It has a recessive inheritance linked to the X chromosome the: 
 Options:  <0> Acatalasemia <1> Hemophilia A. <2> Rett syndrome. <3> Cystic fibrosis, <4> Hypophosphatemia
[EX A]: biology

[EX 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.
[EX A]: chemistry

[EX Q]: Question: Question linked to image nº13 Which treatment do you consider most appropriate? 
 Options:  <0> Ceftriaxone 1 g / day parenterally. <1> Doxycycline 100 mg / 12h oral. <2> Paracetamol 500 mg / 6h oral. <3> Chloramphenicol 500 mg / 6h oral. <4> Amoxicillin / clavulanic acid 1 g / 8h oral.
[EX A]:
medicine