Answer: AWS Organizations

The correct answer is B, AWS Organizations. AWS Organizations is designed to centrally manage multiple AWS accounts within an organization, allowing for the application of policies, control of access to resources, and the consolidation of billing. This service is specifically tailored for managing accounts in a centralized manner, which is why it is the appropriate choice for the question asked. Options A (IAM), C (Cost Explorer), and D (AWS Budgets) do not provide the centralized account management and billing consolidation features that AWS Organizations offers.

Author: LeetQuiz Editorial Team