A company uses a single Amazon S3 bucket to store data that multiple business applications must access. The company hosts the applications on Amazon EC2 Windows instances that are in a VPC. The company configured a bucket policy for the S3 bucket to grant the applications access to the bucket. The company continually adds more business applications to the environment. As the number of business applications increases, the policy document becomes more difficult to manage. The S3 bucket policy document will soon reach its policy size quota. The company needs a solution to scale its architecture to handle more business applications. Which solution will meet these requirements in the MOST operationally efficient way?