Answer:
The correct answers are:
A) Antigen-presenting Cell - both responses.
B) Plasma Cell - humoral immune response.
C) Memory Cells - both responses.
D) Antibodies - humoral response.
E) B Cells - humoral immune response.
F) Helper T Cells - both responses.
G) Cytotoxic T Cells - cell-mediated immune response.
Explanation:
Acquired immunity involves both a humoral immune response and cell-mediated immune response, since these two responses are not independent of each other, but instead "work together" in order to perform a better response.
Humoral immunity is mediated by macromolecules (like antibodies) found in extracellular fluids, and is activated much more quickly than the cell-mediated one, but it doesn't last as long. The Cellular immunity, on the other hands, needs the prior activation of cells such as macrophages and lymphocytes.