Answer 2: The links above provide the ability to convert between USDD and USDC, which are both digital currencies issued on the Ethereum blockchain. USDD is a stablecoin that is pegged to the US dollar, while USDC is a stablecoin that is backed by a reserve of US dollars. Both currencies can be used for payments, remittances, savings, and investments. By providing the ability to convert between these two currencies, users can benefit from the stability of the US dollar while still enjoying the advantages of digital currencies.