Which of the following best describes a way in which models of cell-mediated immune responses and nonspecific immune responses would differ?

Which of the following best describes a way in which models of cell-mediated immune responses and nonspecific immune responses would differ?

 A. Cell-mediated immune responses do not produce lymphocytes, while nonspecific immune responses do.

 B. Cell-mediated immune responses do not require helper T cells, while nonspecific immune responses do.

 C. Nonspecific immune responses do not involve memory cells, while cell-mediated immune responses do.

 D. Nonspecific immune responses do not take place in the blood, while cell-mediated immune responses do.