Question

which type of t cell is involved in stopping an immune response after a pathogen has been eliminated?
a regulatory t cells
b cytotoxic t cells
c helper t cells
d killer t cells

Explanation:

Regulatory T - cells, also known as Tregs, play a crucial role in suppressing or stopping the immune response once the pathogen has been eliminated to prevent over - activation of the immune system and potential damage to the body's own tissues. Cytotoxic T - cells kill infected cells, helper T - cells assist other immune cells, and killer T - cells are another name for cytotoxic T - cells.

Answer:

A. Regulatory T cells