**Core Concept**
Rickets is a disease caused by vitamin D deficiency, leading to softening of the bones in children. The radiological features of rickets are crucial for its diagnosis and include characteristic changes in the bones, which can be observed on X-rays.

**Why the Correct Answer is Right**
Rickets is characterized by several distinct radiological features, including:
* **Trabecular thinning**: The trabeculae in the bones become thinner, leading to a characteristic 'hair-on-end' appearance.
* **Fractures**: Rickets can cause multiple fractures in the bones, which can be seen as lucent lines or 'fracture lines' on X-rays.
* **Bow legs**: Rickets can cause bowing of the legs, which can be seen as a concave curvature of the femur and tibia.
* **Sclerosis of the metaphysis**: The metaphyseal region of the bones becomes sclerotic, leading to a characteristic 'cupping' or 'scooping' of the metaphysis.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it is not a characteristic radiological feature of rickets. Rickets is characterized by softening of the bones, not hardening.
**Option B:** This option is incorrect because it is not a specific radiological feature of rickets. While fractures can occur in rickets, they are not a diagnostic feature of the disease.
**Option C:** This option is incorrect because it is a characteristic radiological feature of rickets. Sclerosis of the metaphysis is a hallmark of the disease.

**Clinical Pearl / High-Yield Fact**
It's essential to remember that rickets can be prevented by ensuring adequate vitamin D levels in children, especially during the first two years of life.

**Correct Answer: B.**