Final answer:
The third stage of labor and delivery in childbirth results in the delivery of the placenta, marking the end of the childbirth process.
Step-by-step explanation:
The 3rd stage of labor and delivery accomplishes the delivery of the placenta. This phase occurs after the baby has been born and involves the detachment and expulsion of the placenta and associated fetal membranes from the uterus. This stage is essential as it completes the process of childbirth, helps to prevent postpartum hemorrhage, and signifies that the body is returning to its non-pregnant state.