A company runs its databases on Amazon RDS for PostgreSQL. The company wants a secure solution to manage the master user password by rotating the password every 30 days. Which solution will meet these requirements with the LEAST operational overhead?

• AUse Amazon EventBridge to schedule a custom AWS Lambda function to rotate the password every 30 days.
• BUse the modify-db-instance command in the AWS CLI to change the password.
• CIntegrate AWS Secrets Manager with Amazon RDS for PostgreSQL to automate password rotation.
• DIntegrate AWS Systems Manager Parameter Store with Amazon RDS for PostgreSQL to automate password rotation.