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In the context of a Databricks project requiring a custom authentication mechanism for accessing the Databricks REST API, consider the following scenario: Your organization mandates the use of a secure, scalable, and cost-effective solution that supports multi-factor authentication and allows for the revocation of access tokens without impacting other users. Additionally, the solution must comply with industry-standard security practices. Given these requirements, which of the following approaches would BEST meet the organization's needs? (Choose one option.)