What Happens When a Helper T Cell Is Activated

Multiple Choice

What happens when a helper T cell is activated?

A) Two populations of cells are formed: helper T cells and cytotoxic T cells; the TH cells activate B cells and the TC  cells target virus-infected cells.
B) Two populations of cells are formed: memory TH cells and effector TH cells; the effector TH cells produce a variety of antibodies.
C) Two populations of cells are formed: memory TH cells and effector TH cells; the effector TH cells play a role in activating B cells.
D) Two populations of cells are formed: effector TH cells and effector TC cells; these work together to activate B cells and macrophages.
E) Activated TH cells produce cytokines that stimulate dendritic cells, converting them into antigen-presenting cells.