Acquired immunity involves both a humoral immune response and a cell-mediated immune response.

Sort the items into the appropriate bins depending on whether they are involved in the humoral response, the cell-mediated response, or both the humoral and the cell-mediated responses.

1. Helper T cells and cytokines
2. antibodies
3. B cells
4. antigen-presenting cells
5. plasma cells
6. cytotoxic T cells
7. memory cells