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: Pseudomonas aeruginosa is:
Options: <0> Able to ferment a large variety of sugars. <1> Often resistant to many antibiotics for medical use. <2> Responsible for toxi-alimentary infections. <3> Part of the normal microbiota of the skin. <4> A commensal bacterium of the digestive tract.
[A]: biology

[Q]: Question: The dye-test (Sanbin-Feldman test) is the reference method for the diagnosis of:
Options: <0> Cryptosporidiosis. <1> Sarcocystosis <2> Malaria. <3> Toxoplasmosis <4> Cyclosporosis
[A]: pharmacology

[Q]: Question: It usually protects the DNA of a restriction enzyme:
Options: <0> Methylation of a nitrogenous base. <1> Glycosylation of a nitrogenous base. <2> Acetylation of deoxyribose. <3> Phosphorylation of deoxyribose. <4> Loss of one of the hydroxyl groups of phosphate.
[A]:
biology