**Core Concept**
Osteogenic sarcoma, also known as osteosarcoma, is a primary malignant bone tumor that typically affects the metaphysis of long bones, particularly the lower end of the femur in young adults. The management plan for osteogenic sarcoma involves a multidisciplinary approach, including surgery, chemotherapy, and radiation therapy.

**Why the Correct Answer is Right**
The correct answer involves a combination of surgical and medical management. The primary goal is to achieve local control of the tumor, followed by systemic treatment to prevent metastasis. **Wide resection of the tumor** is crucial to prevent local recurrence. **Chemotherapy**, typically with a combination of agents such as doxorubicin, cisplatin, and methotrexate, is administered preoperatively to shrink the tumor and postoperatively to eliminate any remaining cancer cells. **Radiation therapy** may be used in selected cases to control pain or to treat residual tumor after surgery.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incomplete and does not provide a clear management plan for osteogenic sarcoma.
**Option B:** While chemotherapy is an essential component of osteogenic sarcoma treatment, it is not the sole answer to the question.
**Option C:** Radiation therapy alone is not sufficient to manage osteogenic sarcoma, as it may not achieve local control of the tumor.

**Clinical Pearl / High-Yield Fact**
It is essential to note that osteogenic sarcoma is highly responsive to chemotherapy, with a significant improvement in survival rates with the use of neoadjuvant and adjuvant chemotherapy.

**Correct Answer: B. Chemotherapy.**