A company runs its application on Oracle Database Enterprise Edition and needs to migrate the application and database to AWS using Bring Your Own License (BYOL). The application uses third-party database features that require privileged access. Which migration solution will meet these requirements MOST cost-effectively?

The correct answer is to migrate to Amazon RDS Custom for Oracle. This service allows customers to use their own Oracle licenses (BYOL) and provides privileged access to the underlying database and operating system. This access is crucial for supporting third-party features that require specific configurations or privileged operations, making it the most cost-effective solution when these features are essential. Migrating to Amazon RDS for Oracle is incorrect because RDS for Oracle does not provide the necessary privileged access to support third-party features that require it. Replacing features with AWS Lambda would involve significant re-architecture and development, which is not the most cost-effective solution given the BYOL requirement and existing third-party features. Migrating to Amazon DynamoDB is incorrect because DynamoDB is a NoSQL database, fundamentally different from Oracle. This would require a complete re-architecture of the application and database schema, which is not suitable for a lift-and-shift migration with existing third-party features. Migrating to Amazon RDS for PostgreSQL is incorrect because it involves a database engine change, requiring significant application code rewrites and schema conversion, which is not the most cost-effective solution for maintaining existing Oracle-specific third-party features.