**Core Concept**
Vacuum extraction, also known as ventouse extraction, is a method used to assist in the delivery of a baby during vaginal delivery. It involves the use of a vacuum device to help pull the baby out of the birth canal. This technique is often employed when the mother is exhausted or when there are concerns about the baby's well-being.

**Why the Correct Answer is Right**
Vacuum extraction works by creating a negative pressure environment around the fetal scalp, which helps to facilitate the delivery process. The vacuum device is applied to the scalp, and gentle traction is applied to the fetal head to aid in the delivery. This technique is typically used in conjunction with manual assistance from the healthcare provider. The vacuum device helps to reduce the amount of force required to deliver the baby, making it a safer option for both the mother and the baby.

**Why Each Wrong Option is Incorrect**
* **Option A:** Incorrect because vacuum extraction is not typically used in cases where the mother is not exhausted or when there are no concerns about the baby's well-being.
* **Option B:** Incorrect because vacuum extraction is not a method of induction of labor; it is used to assist in the delivery of a baby during vaginal delivery.
* **Option C:** Incorrect because vacuum extraction is not a method of fetal monitoring; it is a technique used to aid in the delivery of a baby.

**Clinical Pearl / High-Yield Fact**
When using vacuum extraction, it is essential to ensure that the fetal scalp is not compromised and that the vacuum device is not applied too tightly, as this can cause injury to the baby. The American College of Obstetricians and Gynecologists (ACOG) recommends that vacuum extraction be used only when the fetal head is engaged in the pelvis and the mother is pushing.

**Correct Answer:**