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: The sequencing of an oligosaccharide is done by:
Options: <0> Degradation Edman. <1> Chromatography Whatman. <2> Patch-Clamp. <3> Mass spectrometry. <4> Capillary electrophoresis.
[A]: pharmacology

[Q]: Question: A coulometric evaluation:
Options: <0> You do not need the current performance to be 100%. <1> It does not need an indicator system of the end point. <2> Always use a potentiostatic system. <3> It uses a titrant that is generated electrolytically. <4> You need a burette to add the titrant.
[A]: chemistry

[Q]: Question: In humans, the synthesis of aspartate from oxaloacetate is catalysed by:
Options: <0> Oxalacetate decarboxylase. <1> Aspartate synthetase. <2> Aspartate dehydrogenase. <3> Pyridoxal phosphate-dependent transaminase. <4> Oxalacetate ligase.
[A]:
chemistry