Which of the following is a custodial wallet example?

A custodial wallet is a type of cryptocurrency wallet where a third party holds the private keys on behalf of the user. This means that the user does not have direct control over their private keys but rather relies on the custodian to provide access and manage the wallet.

Coinbase is classified as a custodial wallet because it operates as a cryptocurrency exchange where users create accounts to buy, sell, and store cryptocurrencies. When users store their assets on Coinbase, they don't control the private keys; instead, Coinbase, as the custodian, manages them. This arrangement provides convenience for users, especially beginners, who may not want to handle the complexities of managing their private keys but also comes with the risk of relying on the security measures of the service provider.

In contrast, an example like Exodus is a non-custodial wallet, which means users are given full control over their private keys. Ledger represents a hardware wallet that provides a high level of security by storing private keys offline, while Trust Wallet is also a non-custodial wallet where users maintain control over their funds. This distinction between custodial and non-custodial wallets is important for understanding different security models in cryptocurrency management.