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: A patient with an internal arteriovenous fistula in the left arm will recommend:
Options: <0> Put on a compressive bandage for protection. <1> Perform elbow flexion and extension exercises to activate their maturation. <2> Feel the fistula daily to check that it works. <3> Clean the surrounding skin with an antiseptic every day. <4> Lift weight with that hand to achieve vascular remodeling.
nursery

Question: The Code of Ethics of Spanish Nursing:
Options: <0> It constitutes the minimum standards of action for Nursing. <1> It is a deontological Ethics of maximums for Nursing. <2> It is a bridge between patrimonial and collegial responsibility. <3> It is a set of guidelines for professional practice. <4> It addresses the guidelines for proper assistance to the sick.
nursery

Question: The virion of retroviruses:
Options: <0> It has helical shape. <1> It has an icosahedral form. <2> It contains a single copy of its genome. <3> It contains two copies of its genome. <4> It contains a segmented genome.
biology