Which of the following is a common treatment method for Hodgkin's disease?

Hodgkin's disease, a type of lymphoma, is primarily treated with chemotherapy due to its effectiveness in targeting rapidly dividing cancer cells. Chemotherapy utilizes a combination of drugs aimed at killing these cancer cells and reducing the size of lymph nodes involved in the disease. The approach often leads to remission and is frequently combined with radiation therapy for better outcomes.

Physical therapy is generally not a primary treatment for Hodgkin's disease but may be used to address side effects from treatments later on. Insulin therapy is specific to diabetes management and does not apply to cancer treatments. Gene therapy is an emerging field that aims to treat diseases by modifying genetic material, but it is not yet a standard approach for treating Hodgkin's disease. Thus, chemotherapy stands out as the most recognized and effective treatment method for this condition.