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.
