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How can a solutions architect meet the company's IT security guidelines requiring encrypted database credentials with a 14-day rotation period, using the least operational effort for a web application with an Amazon Aurora MySQL DB cluster and an application tier on Amazon EC2 instances?
A
Utilize AWS KMS and Secrets Manager to create and rotate credentials for the Aurora DB cluster every 14 days.
B
Employ AWS Systems Manager Parameter Store with KMS-encrypted parameters and a Lambda function to rotate the password every 14 days.
C
Use an AWS KMS-encrypted EFS to store and restrict access to credentials, with a Lambda function to update credentials every 14 days.
D
Keep credentials in an AWS KMS-encrypted S3 bucket, ensuring the application loads them regularly, and use a Lambda function to rotate credentials every 14 days.