What Ledger holds XDC?

Could you please clarify for me which entity or service is referred to by "Ledger" in the context of holding XDC? Are we discussing a specific hardware wallet, a software platform, or a custodial service that specializes in storing cryptocurrencies? Additionally, could you provide some insight into why XDC, specifically, is being held by this Ledger, and what are the benefits or considerations for doing so? Understanding these details will help me give a more accurate and informative answer to your question.