A healthy immune system destroys cancer cells with A) CTLs. B) activated macrophages. C) CD⁺T cells. D) CTLs and activated macrophages. E) tumor- specific antigens.

Question

Quizplus · Accepted Answer

Both CTLs (cytotoxic T lymphocytes) and activated macrophages are important components of the immune system's response to cancer cells. CTLs can directly recognize and kill cancer cells, while activated macrophages can engulf and destroy cancer cells. Therefore, the best choice is D as it includes both cell types. The other options (A, B, C, and E) are not comprehensive enough to describe the immune system's response to cancer.

A Healthy Immune System Destroys Cancer Cells with