Instructions: In this task, you are given a multiple-choice question about healthcare. Answer the question based on your information and classify your answers into '1', '2', '3', and '4'.
Input: Question: Cardiac output (CG) increases between 40 and 50% during pregnancy. When does it return to normal values?
Options: <1> One week before delivery <2> During labor <3> Seven to ten days after delivery. <4> At the end of the puerperium. <5> At the end of breastfeeding.
Output:
3