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: In the synthesis of DNA, the quinolones act: 
 Options:  <0> Joining the double helix and thus blocking the progress of the replication fork. <1> Interlacing in the double helix and thus causing errors in the transcription. <2> On DNA gyrase. <3> As nucleotide analogs that are incorporated into DNA. <4> About DNA polymerases.
[EX A]: biology

[EX Q]: Question: Which of the following combinations of drugs is commonly used in the maintenance treatment of patients with a kidney transplant? 
 Options:  <0> Tacrolimus, cyclosporine and mycophenolate mofetil. <1> Tacrolimus, mycophenolate mofetil and glucocorticoids. <2> Tacrolimus, sirolimus and mycophenolate mofetil. <3> Tacrolimus, azathioprine and mycophenolate mofetil. <4> Cyclosporine, azathioprine and mycophenolate mofetil.
[EX A]: medicine

[EX Q]: Question: The glucocorticoids: 
 Options:  <0> Increase ACTH levels. <1> They stimulate the secretion of CRH. <2> They are anti-inflammatory. <3> They are hypoglycemic. <4> Increase immune responses.
[EX A]:
biology