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: The tissue is avascular: 
 Options:  <0> Epithelial. <1> Conjunctive. <2> Osseous. <3> Muscular. <4> Nervous.
biology

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.
chemistry

Question: In mitosis, the nuclear membrane disintegrates and spindle microtubules bind to the kinetochores in: 
 Options:  <0> Cytokinesis <1> Prometaphase. <2> Metaphase <3> Interface. <4> Prophase.

biology