**Core Concept**
Tetralogy of Fallot is a congenital heart defect characterized by four classic features: ventricular septal defect (VSD), pulmonary stenosis, right ventricular hypertrophy, and an overriding aorta. This combination of defects leads to reduced pulmonary blood flow and increased systemic vascular resistance.

**Why the Correct Answer is Right**
The correct features of Tetralogy of Fallot include a VSD, which allows blood to flow from the left to the right ventricle, and pulmonary stenosis, which restricts blood flow from the right ventricle to the pulmonary artery. Right ventricular hypertrophy occurs as a result of the increased resistance to blood flow through the pulmonary valve. The overriding aorta is a critical feature, where the aorta sits on top of the VSD, allowing blood to flow from both ventricles into the aorta.

**Why Each Wrong Option is Incorrect**
* **Option A:** (not provided) - This option is not present in the question, so we cannot assess its correctness.
* **Option B:**
* **Option C:**
* **Option D:**

**Clinical Pearl / High-Yield Fact**
A key clinical feature of Tetralogy of Fallot is the patient's characteristic "blue" or "cyanotic" appearance due to decreased oxygen saturation in the blood. This is often accompanied by clubbing of the fingers and toes.

**Correct Answer:**
(To provide a complete answer, the actual options from the question must be given.