You have an Azure Key Vault kv1 (Standard SKU) and will programmatically store an asymmetric key pair there for encryption/decryption. Which client object should your application use to retrieve the key pair from the vault?

The KeyClient is the correct choice because it is specifically designed to manage cryptographic keys (including asymmetric key pairs) within Azure Key Vault. It provides methods for creating, retrieving, updating, and deleting keys. SecretClient is used for managing secrets, which are typically text-based values like passwords or connection strings, not cryptographic keys. CertificateClient is for managing certificates, which are distinct from raw cryptographic keys, though certificates do contain keys. KeyVaultSettingsClient is not a standard client class for interacting with Key Vault keys; it's likely a fabricated option or refers to a different, less common aspect of Key Vault management.