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 which part of the cell is ribosomal RNA synthesized ?:
Options: <0> Nucleolus <1> Ribosomes. <2> Vacuolas <3> Golgi apparatus. <4> Endoplasmic reticulum.

A: chemistry
****
Q: Question: Atenolol is an antihypertensive -antagonist that belongs to the structural family:
Options: <0> Arylethanolamines <1> Quinazolines <2> -Haloalkylamines. <3> Aryloxypropanolamines. <4> 2-Imidazolines.

A: pharmacology
****
Q: Question: The deviation of Beer's law by the use of non-monochromatic radiation can lead to deviations from linearity when representing absorbance versus concentration due to:
Options: <0> Different molar absorptivities of the absorbent species. <1> Very similar molar absorptivities of the radiations of the polychromatic beam. <2> That the radiant power of the incident beam is modified. <3> That the use of a polychromatic beam always implies significant differences with respect to a monochromatic one. <4> That the relation of incident and transmitted powers is different.

A:
pharmacology
****