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: Reactions that use copper (I) salts as reagents to replace the nitrogen in the diazonium salts are called reactions of:
Options: <0> Sandmeyer <1> Chichibabin <2> Peterson. <3> Gabriel. <4> Diels-Alder.
[EX A]: chemistry

[EX Q]: Question: Observe that the liquids coming from the synthesis of chloroquine had an antibacterial activity gave rise to the discovery of the quinolones. This group of antibiotics has various characteristics such as:
Options: <0> Fluoroquinolones have a smaller spectrum of activity than first-generation quinolones. <1> The second generation quinolones are very effective against anaerobes. <2> Fluoroquinolones are not effective against enterobacteria. <3> Fluoroquinolones are effective against Gram-positive but less than Gram-negative. <4> The third and fourth generation fluoroquinolones are not effective against streptococci or staphylococci.
[EX A]: pharmacology

[EX Q]: Question: Fatty fish, commonly called blue, are those that contain just over 10% fat. Which of the following is a lean fish and, therefore, with a lower fat intake?
Options: <0> Sardine. <1> Eel. <2> Salmon. <3> Sole. <4> Mackerel.
[EX A]:
nursery