**Core Concept**
Placenta previa is a condition in pregnancy where the placenta partially or completely covers the internal cervical os, leading to potential bleeding and complications. The management of placenta previa depends on the gestational age, severity of bleeding, and fetal well-being.

**Why the Correct Answer is Right**
In cases of central placenta previa with heavy bleeding, the priority is to control maternal hemorrhage and prevent further complications. Since the fetal heart sound is normal, there is no immediate indication for immediate delivery. The best management approach is to administer intravenous fluids, perform a blood transfusion if necessary, and consider a pelvic rest to reduce further bleeding. However, in cases of severe bleeding, a cesarean section may be required to deliver the baby safely.

**Why Each Wrong Option is Incorrect**
**Option A:** Immediate delivery via cesarean section is not the best approach in this scenario, as the fetal heart sound is normal and the baby is not in distress. Performing a cesarean section unnecessarily can increase the risk of maternal and fetal complications.

**Option B:** Administering uterotonic agents such as oxytocin may help reduce bleeding, but it is not the best initial management approach in a case of central placenta previa with heavy bleeding.

**Option C:** Performing a vaginal examination is contraindicated in cases of suspected placenta previa, as it can exacerbate bleeding.

**Clinical Pearl / High-Yield Fact**
In cases of suspected placenta previa, it is essential to perform a non-invasive prenatal test (NIPT) to assess the risk of placenta previa and other complications. A NIPT can help guide further management and minimize the risk of complications.

**Correct Answer: C. Perform a pelvic rest to reduce further bleeding.**