What does ABC mean in CeX?

Could you please clarify what the acronym "ABC" stands for within the context of CeX, the cryptocurrency exchange platform? I'm particularly interested in understanding if it refers to a specific service, product, feature, or terminology that is unique to CeX and widely used among its users and traders. Additionally, I'd appreciate any insights or context surrounding the use of "ABC" within the platform, as it could potentially be an important factor to consider for those who are new to CeX or the broader cryptocurrency space.