Helper T cells and regulatory T cells ________.
A) include approximately 10-15 percent of the circulating lymphocytes
B) can differentiate into plasmocytes when appropriately stimulated
C) are solely responsible for the phenomenon in the body known as "humoral immunity"
D) control the activation and activity of B cells
E) are responsible for the production and secretion of antibodies

Question

Quizplus · Accepted Answer

Helper T cells and regulatory T cells are involved in controlling the activation and activity of B cells, but they do not produce antibodies themselves. They make up approximately 10-15 percent of circulating lymphocytes, but they do not solely control humoral immunity or differentiate into plasmocytes.

Helper T Cells and Regulatory T Cells ________