**Core Concept**
The "Coeur en Sabot" or "boot-shaped" heart is a radiographic appearance that can be observed in certain cardiac conditions. This description refers to the characteristic shape of the cardiac silhouette on a chest X-ray.

**Why the Correct Answer is Right**
The "Coeur en Sabot" shape is specifically associated with conditions that cause right ventricular hypertrophy, leading to an enlarged right ventricle that displaces the cardiac apex downwards. This results in a characteristic boot-shaped or moccasin-shaped cardiac silhouette on the chest X-ray. The correct answer is related to conditions that affect the right side of the heart.

**Why Each Wrong Option is Incorrect**
* **Option A:** This option is not related to the "Coeur en Sabot" shape, as it typically describes conditions affecting the left side of the heart or other structures.
* **Option B:** While this option may describe a cardiac condition, it is not directly associated with the "Coeur en Sabot" shape.
* **Option C:** This option is also unrelated to the "Coeur en Sabot" shape, as it describes a different cardiac silhouette appearance.

**Clinical Pearl / High-Yield Fact**
The "Coeur en Sabot" shape is classically associated with Tetralogy of Fallot (TOF), a congenital heart defect characterized by right ventricular hypertrophy, pulmonary stenosis, ventricular septal defect, and an overriding aorta.

**Correct Answer:** C. Tetralogy of Fallot.