Detailed Instructions: 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.
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.
A:
nursery