Distribution of the observed X-ray luminosity (Lx_obs) vs. redshift (z) for all 658 sources in Lyu et al. (2022) with Lx_obs > 0.0 (purple filled circles). Out of them, the 435 sources that are matched to the C3VO sources within a separation of 0.5″ are highlighted (purple filled circles with orange edge colors). The redshifts for the Lyu et al. (2022) sources are from their AGN catalog, which are sourced from the 3D-HST catalog. For this study, we only focused on redshift range of 2.0 < z < 4.0 as shown by the gray shaded region between the two black dashed vertical lines.