Question

multiple - choice question how do the methods of radiation and chemotherapy work to treat cancer? they attack the cancer cells and fight off the infection. they destroy the cells dna or copying machinery. it fixes the mutated dna inside the cancer cells.

Explanation:

Radiation and chemotherapy work by damaging the DNA or the DNA - copying machinery of cancer cells, preventing them from growing and dividing. They do not primarily fight off infections or fix mutated DNA in cancer cells.

Answer:

They destroy the cell's DNA or copying machinery.