**Core Concept**
External Cephalic Version (ECV) is a procedure to manually rotate a fetus from a breech position to a cephalic (head-down) position. It requires a specific set of conditions and patient factors to be performed safely.

**Why the Correct Answer is Right**
ECV is contraindicated in cases where the fetus is not viable or has a congenital anomaly that would make the procedure risky. Additionally, ECV is not recommended in cases of placenta previa, multiple gestations, or in women with a history of uterine surgery or previous ECV failures. The procedure also carries a higher risk in cases of fetal distress or growth restriction.

**Why Each Wrong Option is Incorrect**
**Option A:** Incorrect because oligohydramnios (low amniotic fluid) is not an absolute contraindication for ECV, although it may increase the risk of complications.
**Option B:** Incorrect because a previous cesarean section is not an absolute contraindication for ECV, although it may increase the risk of complications.
**Option C:** Incorrect because a history of previous uterine surgery may increase the risk of complications during ECV, but it is not an absolute contraindication.

**Clinical Pearl / High-Yield Fact**
It is essential to assess the fetal well-being and the integrity of the placenta before performing ECV to minimize the risk of complications.

**Correct Answer:** C.