Question

cancer that has metastasized cannot be removed. what is the option to treat it that often contains arsenic?
metastasis
chemotherapy
diffusion
radiation

Explanation:

Chemotherapy is a treatment method that uses drugs to kill cancer cells. Some chemotherapy drugs may contain arsenic compounds. Metastasis refers to the spread of cancer cells. Diffusion is a physical process. Radiation uses high - energy rays to treat cancer.

Answer:

chemotherapy