Does Binance use USDT or USDC?

Could you clarify for me, does Binance primarily utilize USDT or USDC within its platform operations? I'm trying to get a better understanding of the stablecoins it supports and how they factor into its overall trading ecosystem. Given the significance of these digital assets in the cryptocurrency market, I believe it's crucial to have a clear picture of which ones are being used by leading exchanges like Binance. Could you elaborate on this point and provide any additional insights you may have on the matter? Thank you for your assistance in helping me navigate this complex yet fascinating world of digital currencies.