Which of the following statements about anti-cancer drugs is true?

Anti-cancer drugs play a crucial role in the treatment of cancer by targeting and inhibiting the growth and proliferation of cancer cells. The statement about them potentially including chemicals that stop cancer cells from dividing highlights a fundamental mechanism of action for many chemotherapy agents. These drugs are designed to disrupt the cell cycle, which is the series of phases that a cell goes through to divide and reproduce. By interfering with specific stages in the cell cycle, such as DNA replication or cell division, these drugs can effectively reduce the number of cancer cells and slow the progression of the disease.

Other statements reflect misconceptions regarding anti-cancer drugs. While many anti-cancer treatments, including some chemotherapy options, are derived from plant sources, this is not true for all types of anti-cancer drugs, as there are also synthetic and biologically-engineered medications. Additionally, anti-cancer treatments can be administered via various routes, including injections, oral medications, or infusions, making the assertion that they can only be injected inaccurate. Lastly, effective treatment can occur at various stages of cancer, not solely in late-stage cancers, as early intervention can also lead to favorable outcomes. Thus, the statement regarding the capability of these drugs to inhibit cancer cell division accurately represents a key characteristic of many