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

Answer: pharmacology

Question: Question: Which of the following drugs obtained by means of molecular engineering techniques is not applicable in the treatment of rheumatoid arthritis ?:
Options: <0> Infliximab. <1> Denosumab. <2> Adalimumab. <3> Anakinra <4> Etanercept.

Answer: pharmacology

Question: Question: The treatment of 1-hexyne with 1 mole of hydrogen bromide results in:
Options: <0> 1-bromo-1-hexene. <1> 1-bromo-2-hexene. <2> 1-bromo-3-hexene. <3> 2-bromo-1-hexene. <4> 2-bromo-2-hexene.

Answer:
chemistry