Which of the following is a common treatment option for multiple myeloma?

Chemotherapy is a common treatment option for multiple myeloma because this type of cancer involves the malignant proliferation of plasma cells in the bone marrow, leading to various complications such as anemia, bone lesions, and kidney problems. Chemotherapy utilizes powerful drugs designed to target and kill rapidly dividing cancer cells in the body.

In the case of multiple myeloma, chemotherapeutic agents can help decrease the number of abnormal plasma cells, alleviate symptoms, and improve overall patient survival rates. The treatment often includes combinations of medications that work synergistically to maximize effectiveness while reducing the likelihood of drug resistance.

In contrast, while surgery might be necessary in certain cases for specific bone lesions or complications, it is not a primary treatment for the malignancy itself. Physical therapy can play a supportive role in helping patients manage pain and maintain mobility, especially if they experience side effects from treatment or have related bone issues. However, it does not directly treat the cancer. Prolonged bed rest is generally not recommended as it can lead to further complications, such as muscle atrophy and increased risk of thromboembolism, and does not address the underlying disease.