【正确答案】 B

【答案解析】After a client gives birth, the height of her fundus should decrease about one fingerbreadth (about 1 cm) each day. Immediately after birth, the fundus may be above the umbilicus. At 6 to 12 hours after birth, it should be at the level of the umbilicus. By the end of the first postpartum day, the fundus should be one fingerbreadth below the umbilicus. After 10 days, it should be below the symphysis pubis.