A nursing instructor is teaching a student nurse about the placenta after delivery. Which statement by the student indicates a correct understanding of the shiny Schultz and dirty Duncan sides of the placenta?

A. "The shiny Schultz side is the fetal side, smooth and shiny, delivered first in most cases.": The Schultz side of the placenta is the fetal surface, covered by the amnion, giving it a smooth, shiny appearance. It is often delivered first and represents the side facing the fetus in utero. B. "The dirty Duncan side is the fetal side, smooth and shiny, that faces the baby.": The dirty Duncan side is not the fetal surface; it is the maternal side. It appears rough and reddish due to the presence of cotyledons where the placenta was attached to the uterine wall. C. "The dirty Duncan side is smooth and shiny and indicates incomplete placental separation.": The Duncan side is rough and irregular, not smooth. Its appearance does not indicate incomplete separation but rather represents the natural maternal attachment surface of the placenta. D. "The shiny Schultz side is the maternal side that attaches to the uterine wall.": The Schultz side is the fetal side, not the maternal attachment surface. The maternal side (Duncan) attaches to the uterus, while the Schultz side faces the fetus and is lined with amniotic membrane.