A company wants to ensure that each department operates within their own isolated environment, and they are only able to use pre-approved services.
How can this requirement be met?

A. Set up an AWS Organization to create accounts for each department, and apply service control policies to control access to AWS services.
B. Create IAM roles for each department, and set policies that grant access to specific AWS services.
C. Use the AWS Service Catalog to create catalogs of AWS services that are approved for use by each department.
D. Request that each department create and manage its own AWS account and the resources within it.