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: Which compound acts as a sulfhydryl buffer and as an antioxidant?
Options: <0> Glycogen <1> Glutamic acid. <2> Glucagon. <3> Glutathione <4> Ascorbic acid.
[EX A]: chemistry

[EX Q]: Question: Why is the visual information transmitted to the nucleus of the thalamus ?:
Options: <0> Pulvinar core. <1> Arched core. <2> Lateral geniculate nucleus. <3> Medial geniculate nucleus. <4> Ventrolateral nucleus.
[EX A]: psychology

[EX Q]: Question: To estimate the plasma clearance of a drug (CLIR) that presents a linear kinetic behavior and is excreted significantly in the urine, in a patient with renal failure (RI), it is necessary to know:
Options: <0> Clearance of creatinine in the uremic patient (CLcrIR) and in individuals with normal renal function (CLcrFRN). <1> The renal clearance of the drug in patients with normal renal function (CLrFRN), CLcrIR and CLcrFRN. <2> The fraction of drug excreted in unaltered form in the urine (fr), the dose administered (D), CLrFRN, CLcrIR and CLcrFRN. <3> fr, CLcrIR and CLcrFRN and the plasma clearance of the drug in patients with normal renal function <4> fr, CLrFRN, CLcrIR, CLcrFRN and D.
[EX A]:
pharmacology