## Core Concept
The question pertains to the complications associated with breech delivery, specifically focusing on the leading cause of mortality in such cases. Breech delivery, where the baby is born feet or buttocks first, carries unique risks compared to cephalic (head-first) presentations. Understanding the potential complications is crucial for managing breech deliveries effectively.

## Why the Correct Answer is Right
The correct answer, **C. Intracranial hemorrhage**, is the most common cause of death in breech deliveries. This is because the after-coming head in a breech delivery can experience significant pressure changes and potential trauma, leading to a higher risk of intracranial hemorrhage. This complication arises due to the difficulty in delivering the head, which is the largest and most critical part of the baby, through the birth canal.

## Why Each Wrong Option is Incorrect
- **Option A:** While uterine rupture is a serious complication that can occur during delivery, it is not the most common cause of death specifically associated with breech deliveries.
- **Option B:** Similarly, cord prolapse is a risk in breech presentations but is not the leading cause of mortality in breech deliveries.
- **Option D:** Amniotic fluid embolism is a severe and potentially fatal complication of pregnancy, but it is not specifically more common or directly related to breech delivery as a cause of death compared to intracranial hemorrhage.

## Clinical Pearl / High-Yield Fact
A critical point to remember is that breech deliveries carry a higher risk of complications, including intracranial hemorrhage, due to the mechanics of delivery. Clinicians must be skilled in managing breech presentations, and in some cases, planning for a cesarean section may be the safest option to minimize risks to both the mother and the baby.

## Correct Answer: C. Intracranial hemorrhage.