Which of the following medication classifications is considered a cytotoxic chemotherapy agent?

Choice A rationaleCalcium channel blockers are used to treat hypertension and angina, not as cytotoxic chemotherapy agents.Choice B rationaleAntimetabolites are a class of chemotherapy agents that interfere with DNA and RNA synthesis, making them cytotoxic and effective in treating cancer.Choice C rationaleDiuretics are used to remove excess fluid from the body and are not cytotoxic chemotherapy agents.Choice D rationaleAntibiotics are used to treat bacterial infections and are not classified as cytotoxic chemotherapy agents.