Which AWS service of tool helps to centrally manage billing and allow (CLF-C02)

Correct answer: B. AWS Organizations.
AWS Organizations is a service that allows you to centrally manage and govern multiple AWS accounts, including billing and access control. It provides a hierarchical structure for organizing accounts, enabling you to manage access, security, and billing across multiple accounts from a single location.

While AWS Identity and Access Management (IAM) is related to access control, it is primarily focused on managing access to individual AWS resources within a single account, rather than across multiple accounts.

Cost Explorer and AWS Budgets are both related to cost management, but they do not provide the same level of centralized management and access control as AWS Organizations.