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.

[EX Q]: 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.
[EX A]: nursery

[EX Q]: Question: The p53 factor induces: 
 Options:  <0> Survival. <1> Proliferation. <2> Senescence <3> Apoptosis <4> Increase.
[EX A]: biology

[EX Q]: Question: Cardiac output (CG) increases between 40 and 50% during pregnancy. When does it return to normal values? 
 Options:  <0> One week before delivery <1> During labor <2> Seven to ten days after delivery. <3> At the end of the puerperium. <4> At the end of breastfeeding.
[EX A]:
nursery