instruction:
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.
question:
Question: The lithium dialkyl-heptarate reacts with alkyl halides to produce, by formation of carbon-carbon bonds between the alkyl group of the halide and the alkyl group of the dialkyl acetate: 
 Options:  <0> Alcanes. <1> Alquenos <2> Alquinos. <3> Aromatics <4> Piranos.
answer:
chemistry


question:
Question: In chronic bronchitis, it is characteristic: 
 Options:  <0> Destruction of alveolar walls. <1> Difficulty in the inspiratory flow. <2> Decrease in the volume of inspiratory reserve. <3> Elevation of capillary hydrostatic pressure. <4> Inflammation and mucosal hypersecretion of the respiratory tract.
answer:
pharmacology


question:
Question: Question linked to image # 12 What is the most reasonable attitude at this time ?: 
 Options:  <0> Remove the entire catheter and reinsert it. <1> Extract about 10 cm the catheter and install the appropriate treatment. <2> Channel another central venous line through the jugular vein. <3> Leave it as it is because it can be used to monitor central venous pressure. <4> We can not use the catheter because it has perforated the vein and it is located in the lung.
answer:

medicine