Answer: AWS Organizations

## Explanation **AWS Organizations** is the correct answer because it provides the following key features: - **Centralized Account Management**: Allows you to create and manage multiple AWS accounts from a single master account - **Consolidated Billing**: Combines billing across all accounts in the organization into a single bill - **Policy-Based Management**: Enables you to apply service control policies (SCPs) across multiple accounts - **Hierarchical Structure**: Supports creating organizational units (OUs) to group accounts logically ### Why the other options are incorrect: - **AWS Cost Explorer**: A tool for analyzing and visualizing AWS costs and usage, but doesn't provide account management or consolidated billing capabilities - **AWS Billing and Cost Management**: Provides billing information and cost management tools for individual accounts, but doesn't offer centralized multi-account management - **AWS Budgets**: Helps set custom budgets to track costs and usage, but doesn't provide account management or consolidated billing features For a financial company needing both centralized account management and consolidated billing, AWS Organizations is the appropriate service that addresses both requirements simultaneously.

Author: Ritesh Yadav