What is the function of T-cells in the immune response?

T-cells play a crucial role in the immune response, particularly in identifying and eliminating infected or cancerous cells. They are a type of white blood cell that originates from the bone marrow and matures in the thymus. When T-cells encounter pathogens—such as virus-infected cells—they recognize specific antigens presented on the surface of those cells. This recognition triggers a response where cytotoxic T-cells directly destroy the infected cells to stop the spread of the infection.

In addition to killing infected cells, T-cells also assist other components of the immune system, such as helping B-cells produce antibodies and supporting the activation and function of other immune cells. This multifaceted role makes T-cells integral to the adaptive immune response, emphasizing their importance beyond merely attacking pathogens.

The other choices highlight functions that are not related to T-cells. Antibody production, for instance, is primarily the role of B-cells. Enhancing red blood cell production is associated with erythropoietin and other factors, while regulating body temperature is a function of the hypothalamus and is not directly related to immune response mechanisms.