Choice B rationale:

 The most appropriate advice for Osteosarcoma prevention strategies is to undergo regular medical surveillance.

Osteosarcoma is primarily a genetic condition, and there are no specific lifestyle changes or dietary modifications that can prevent its development.

Regular medical check-ups and surveillance can help in early detection and intervention if there are any signs or symptoms of the disease.

Choice A rationale:

 Avoiding physical therapy is not a relevant or appropriate prevention strategy for Osteosarcoma.

Physical therapy is a valuable component of rehabilitation and may be beneficial for patients with Osteosarcoma to regain function and mobility after treatment.

Choice C rationale:

 Increasing exposure to radiation is not a recommended prevention strategy for Osteosarcoma or any other condition.

Radiation exposure can increase the risk of cancer, and unnecessary radiation should be avoided.

Choice D rationale:

 Consuming a diet high in calcium is not a specific prevention strategy for Osteosarcoma.

While calcium is important for bone health, Osteosarcoma is primarily a genetic condition, and dietary factors are not known to be a significant risk factor.

Choice E rationale:

 Using over-the-counter medicine…