Can someone provide the HIV/AIDS graph that matches these choices?

Can someone provide the HIV/AIDS graph that matches these choices?

This letter indicates the humoral response of B cells

This letter indicates the level of CD4 + T cells

This letter indicates when a sputum sample may be positive for pneumocystis jiroveci

This letter indicates when symptoms of AIDS ensues

This letter indicates the virus in a latent period

This level indicates the level of virus antigen

To generate this letter's information requires measuring serum antibody concentrations