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

Explanations:

AWS Organizations allows for centralized management of multiple AWS accounts, including automated account creation, applying service control policies (SCPs), and simplifying billing processes.

Cost Explorer is used for analyzing and visualizing AWS costs and usage, but it does not provide account management or SCP capabilities.

AWS Budgets is designed for tracking AWS spending and usage against budgets, but it does not offer account management or centralized governance features.

AWS Trusted Advisor provides best practices and recommendations for optimizing AWS resources but does not facilitate centralized account management or SCPs.