ATA and BFA_ATA entries in wp_options table

I'm trying to clean up my wp_options table and saw there are entries for both ATA_[name] and BFA_ATA_[name], the latter having almost three times as many entries. Some option names are the same (e.g., "ata_archive_noindex" and "bfa_ata_archive_noindex"). There are some in ATA that aren't in BFA_ATA and many, many more vice versa.

I've been using (and updating) the theme for well more than a decade. Are the ATA_ entries update/upgrade remnants whose functions are incorporated in the BFT_ATA entries? In other words, do I need to keep the ATA_ options or would it be safe to delete them?