Treatment is the method to cure diseases. Chemotherapy and radiation are the treatments used to treat cancers and kill the harmful cancerous cells. Thus, option B is correct.
Chemotherapy is a treatment method that involves drugs and medicines that are powerful and able enough to kill the harmful cells of the body. They are generally given to cancer patients.
Radiation is another treatment process where the cancer cells are subjected to high and powerful radiation like X-rays that kills and shrinks the tumor. The treatments are given based on the stages and complexity.
Therefore, chemotherapy and radiation are used to treat cancer.
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