Question

after a cytotoxic t cell attacks a virus infected cell, what cells are killed?
a infected cells
b cytotoxic t cell
c regulatory t cell
d virus

Explanation:

Cytotoxic T - cells are part of the immune system's cell - mediated response. They recognize and bind to virus - infected cells and release cytotoxic substances to kill the infected cells. They do not kill themselves, regulatory T - cells, or the virus directly (they target the infected cell which harbors the virus).

Answer:

A. Infected cells