## **Core Concept**
The question tests knowledge of disorders associated with growth retardation, skeletal deformities, and hemosiderosis. These symptoms suggest a systemic condition affecting multiple body systems, including growth and development, bone health, and iron metabolism.

## **Why the Correct Answer is Right**
The correct answer, **C. Beta-Thalassemia Major**, is associated with growth retardation due to chronic anemia and poor oxygen delivery to tissues, skeletal deformities resulting from bone marrow expansion and osteoporosis, and hemosiderosis (iron overload) due to frequent blood transfusions. This condition, also known as Cooley's anemia, is a severe form of thalassemia that requires regular blood transfusions and iron chelation therapy to manage complications.

## **Why Each Wrong Option is Incorrect**
- **Option A:** While **A. Sickle Cell Disease** can cause growth retardation and skeletal deformities due to vaso-occlusive crises and chronic anemia, it is less commonly associated with significant hemosiderosis compared to conditions requiring frequent transfusions.
- **Option B:** **B. Alpha-Thalassemia** typically presents with less severe symptoms than beta-thalassemia major and is less likely to cause the combination of growth retardation, skeletal deformities, and significant hemosiderosis.
- **Option D:** **D. Glycogen Storage Disease** primarily affects energy metabolism and storage, leading to hypoglycemia, hepatomegaly, and muscle weakness, but it is not characteristically associated with hemosiderosis.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that beta-thalassemia major requires regular blood transfusions, which can lead to **iron overload** (hemochromatosis or hemosiderosis), a critical complication that necessitates iron chelation therapy to prevent organ damage.

## **Correct Answer:** C. Beta-Thalassemia Major