Final answer:
The fundus of the uterus is typically 2 cm below the umbilicus on the second day postpartum following a C-section, as the uterus undergoes involution.
Step-by-step explanation:
On the second day postpartum following a Cesarean section (C-section), the expected location to palpate a woman's fundus is c) 2 cm below the umbilicus. Immediately after birth, the uterus begins a process called involution, where it gradually returns to its pre-pregnancy size and position. The fundus, which is the top part of the uterus, is generally at the level of the umbilicus (navel) right after delivery and then decreases about 1-2 cm each day. By the second day postpartum, the fundus is normally found around 2 cm below the level of the umbilicus.