Which AWS service or tool should the company use to meet these requirements?

Explanations:

AWS Organizations allows for centralized management of multiple AWS accounts. It enables the automation of account creation, application of Service Control Policies (SCPs) to manage permissions, and simplifies billing by consolidating accounts.

Cost Explorer is a tool for analyzing and visualizing AWS costs and usage over time. It does not provide account management, governance, or automation capabilities.

AWS Budgets is a service for tracking and managing costs against budgets. While it helps with financial governance, it does not automate account creation or manage SCPs.

AWS Trusted Advisor provides best practices and recommendations for AWS accounts but does not offer centralized account management, automation for account creation, or the application of SCPs.