Chemotherapy uses to destroy cancer cells.
a. radiation
b. hormones
c. drugs
d. surgery
user: stress is a factor that can influence the development and growth of cancer.

It uses chemicals for the destruction of cancerous cells. Therefore, the correct answer is C i.e., drugs. Main aims of chemotherapy are to cure, control and palliate. It stops or slow down the growth of cancerous cells. The drugs are directly injected into the blood of the patients, thus, chemotherapy is a systemic therapy.

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