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: In a patient with Renal Insufficiency, oral drugs must be administered: 
 Options:  <0> With natural fruit juices. <1> With the lowest volume of liquid possible. <2> With the same volume as any other patient. <3> With the largest volume of liquid possible. <4> Always during hemodialysis.
[A]: nursery


[Q]: Question: Which of the following molecules has at least a 90º angle ?: 
 Options:  <0> H2O. <1> NH3. <2> CH4 <3> SF4. <4> BF3.
[A]: pharmacology


[Q]: Question: Liquid chromatography in normal phase: 
 Options:  <0> It uses a column with apolar groups that interact with the apolar part of the analytes differentially. <1> It is a mode of operation that employs a polar stationary phase with a low polarity mobile phase. <2> It uses highly polar mobile phases such as alkanes or chloroalkanes. <3> It is a mode of operation that employs a non-polar surface with a mixed aqueous / organic mobile phase. <4> It uses stationary phases with a large number of hydrophobic alkyl ligands.
[A]:
chemistry